A spreadsheet is a representation of an object, where the records are rows and the fields are columns. An object is a collection of records that have the same fields, such as account, contact, or opportunity.

Explanation
The place where GCC's end users should go to change to the Sales Console is the App Launcher icon (Label A). The App Launcher is a menu that allows users to access all the apps and items in their Salesforce org. The Sales Console is one of the apps that can be found in the App Launcher. The user can search for "Sales Console" in the App Launcher and select it to switch to the Sales Console app. The Sales Console is a standard Salesforce Lightning console app that meets all the sales needs. The Search bar (Label B) is a feature that allows users to find records and other items in their Salesforce org, but it does not search for apps outside their org. The dropdown in the navigation bar (Label C) is a menu that allows users to switch between different tabs and items within the current app, but it does not show other apps.

Explanation
The place where the new user can set up an email signature in Salesforce is the Personal Settings. The Personal Settings are where the user can customize their preferences, such as language, locale, time zone, display, security, and email. The user can access the Personal Settings by clicking on their profile icon and then clicking Settings. Then, they can click on Email under My Personal Information and then click on My Email Settings. There, they can enter their email signature in the Email Signature field and click Save. The User Profile and the Email Setup are not the correct places to set up an email signature in Salesforce.

The related list of cases can be added to the account page layout, which determines the fields, buttons, and related lists that users see when they view an account record.