Explanation
You can create a report in any of these three methods:
Create a report as a new page in an application by using the Create Page Wizard. This wizard guides you through the steps of selecting a page type, defining attributes, selecting a source (such as SQL query or table), and adding items or buttons.
Create a report when you create a new database application by using the Create Application Wizard.
This wizard allows you to generate one or more reports based on existing tables or views in your schema. You can also create a report and form on the same table or view.
Create a report region on a page in an application by using the Page Designer. This tool allows you to drag and drop a region type (such as Classic Report, Interactive Report, or Interactive Grid) onto the page and define its attributes and source.
The other option is incorrect because:
You cannot create a report from Object Browser. Object Browser is a tool that allows you to view and manage the database objects in your schema, such as tables, views, indexes, etc. You can only run SQL queries or scripts from this tool, not create reports.
Verified References: [Creating Database Applications] [Creating Pages] [Creating Regions] [Using Object Browser]

Explanation
Cards are a page type that display information in a grid layout of tiles. Each card can contain an image, a title, a subtitle, and an optional link. Cards are suitable for presenting summary or overview information in an attractive and compact way1 Verified References: 1: Understanding Page Types, Features, and Settings - Oracle Help Center

Explanation
Template options provide developers with a declarative approach to applying different styles to components on an Oracle APEX page. Developers can use template options to declaratively apply CSS modifiers to the templates they have chosen for pages, regions, reports, lists, breadcrumbs, items and buttons. Developers can use template options in all of the following ways:
Applying different colors or accents. Developers can use template options to change the color scheme or accent color of components, such as buttons, lists, or regions.
Rendering buttons in different styles, with and without icons. Developers can use template options to change the shape, size, style, and icon of buttons on a page.
Applying different spacing and padding. Developers can use template options to adjust the spacing and padding of components, such as regions, items, or reports.
Displaying form fields with different alignments. Developers can use template options to change the alignment of form fields and labels, such as left-aligned, right-aligned, or top-aligned.

Explanation
A Progressive Web Application (PWA) is a web application that uses modern web technologies and best practices to provide a native app-like experience to users. Enabling the PWA functionality in your APEX app has the following benefits:
It optimizes page loading speed on a mobile device by caching static resources and using service workers to handle network requests.
It adds a new navigation bar entry named Install App to your app, which allows users to install the app on their device's home screen and access it offline.
It enhances the app's appearance and behavior by using a manifest file to specify the app's name, icon, theme color, orientation, and display mode.
The other options are incorrect because:
To use the PWA feature, the Friendly URLS attribute in the Application Definition, Properties section must be turned On. This attribute enables user-friendly URLs that are required for PWA functionality.
PWA features will not be rendered if the application is served in an unsecured environment. The application must use HTTPS protocol to enable PWA functionality.
You can create a PWA from an existing application or a new application with the Create Application Wizard. You just need to enable the PWA functionality in the User Interface section of the Application Definition.
Verified References: Progressive Web ApplicationsEnabling Progressive Web Application Functionality

Explanation
Custom Apps are specific to your workspace and are only available if your instance administrator has enabled them. You can install Sample Apps and Starter Apps directly from the Gallery or download them from GitHub. Sample Apps and Starter Apps are available with every Oracle APEX workspace. References: Using the App Gallery and Configuring the Application Gallery