Explanation
To hide a few columns in your interactive report, you should choose Columns from the Actions menu. This option allows you to select which columns to show or hide in your report by using checkboxes. You can also reorder or resize the columns from this option.
The other options are incorrect because:
Filter allows you to filter the data in your report by applying one or more conditions on the columns.
Data allows you to add, modify, or delete data in your report by using inline editing or modal dialog editing.
Format allows you to change the appearance of your report by applying conditional formatting rules or highlighting colors.
Verified References: [Customizing Interactive Reports] [Actions Menu]

Explanation
The feature pages that can be created using the Create Page Wizard are About Page, Access Control, Activity Reporting, Configuration Options, Email Reporting, Feedback, Login Page, and Theme Style Selection. These pages provide application-level functionality that can be added to an existing application. Search Page and Unified Task List are not feature pages that can be created using the Create Page Wizard. Verified References: Managing Feature PagesFeature Page Types

Explanation
A chart is a type of component that enables users to visualize data in different ways and perform data analysis.
A chart can display data in various formats, such as bars, lines, areas, ranges, combinations, scatters, bubbles, polars, radars, pies, donuts, funnels, and more. Oracle APEX supports charts based on the Oracle JavaScript Extension Toolkit (Oracle JET) Data Visualizations. Oracle JET is a modular open source toolkit based on modern JavaScript, CSS3, and HTML5 design and development principles. Three of the correct statements about charts in Oracle APEX are:
You can visualize data as bar, line, area, range, combination, scatter, bubble, polar, radar, pie, donut, funnel and more. This statement is true because Oracle APEX provides a rich set of chart types that can be used to display data in different ways and support different analysis scenarios. You can choose from over 20 chart types when creating a chart in Oracle APEX.
Oracle APEX supports charts based on the Oracle JavaScript Extension Toolkit (Oracle JET) Data Visualizations. This statement is true because Oracle APEX uses Oracle JET as the underlying technology for rendering charts in the browser. Oracle JET provides high-performance and interactive data visualizations that are compatible with various devices and browsers.
Each Oracle JET visualization supports animation, accessibility, responsive layout, internationalization, test automation, and a range of inter activity features. This statement is true because Oracle JET offers many features and capabilities that enhance the user experience and functionality of the charts. For example:
Animation: Charts can have smooth transitions and effects when loading or updating data.
Accessibility: Charts can support keyboard navigation, screen reader compatibility, and high contrast mode for users with disabilities.
Responsive layout: Charts can adapt to different screen sizes and orientations by resizing or repositioning elements.
Internationalization: Charts can support different languages, date formats, number formats, and text directions for users from different regions.
Test automation: Charts can support automated testing tools and frameworks by providing unique identifiers for elements.
Interactivity: Charts can support user actions such as zooming, panning, filtering, selecting, drilling down, or popping up tooltips.

Explanation
The navigation menu is the list of pages that displays when you click on the hamburger menu in the upper-left corner of an APEX application. The navigation menu is a shared component that can be created and edited in the Shared Components page3. Lists, breadcrumbs, and navigation bar entries are other types of navigation components in APEX, but they are not the same as the navigation menu.

Explanation
A page process type defines what action the page process performs when it is executed. There are many page process types available in Oracle APEX, such as Execute PL/SQL Code, Data Loading, Branch, etc. One of the valid page process types is Set Value. The Set Value page process type sets session state for an item or items on a page using a computation or PL/SQL expression. You can use this page process type to assign values to items based on logic or conditions. The other options are not valid page process types. Execute JavaScript Code is a dynamic action type, not a page process type. Send E-Mail is an application process type, not a page process type. Verified References: [Understanding Page Processes - Oracle Help Center], [Set Value Process Type - Oracle Help Center]