AppExchange is a marketplace where app builders can find prebuilt resources to help with migration and adoption projects. AppExchange offers apps, components, solutions, and consulting services that can assist with moving from Classic to Lightning Experience. Import Wizard, Lightning Object Creator, and Flow Builder are not sources of prebuilt resources, but tools for data import, object creation, and automation respectively.

The app builder should use the CASESAFEID(Id) formula to create this new field. The CASESAFEID function returns the 18-digit case-insensitive version of the record ID, which is unique for each record in Salesforce. The 18-digit record ID is useful for exporting data to external systems that require case-sensitive IDs1. Option A, C, and D are not formulas that can return the 18-digit record ID.

A flow or a process can be used to assign a permission set to new users. A flow can be triggered by a record change or an invocable action, while a process can launch a flow as an immediate or scheduled action

Create a custom action is the recommended solution to meet the requirement of creating additional accounts to form a hierarchy from a Parent Account record. According to the Salesforce documentation, "Actions let users quickly create or update records, log calls, send emails, and more, in the context of a particular object." A custom action can auto-populate fields based on the parent account and make it easier for users to create child accounts. Add Path on Account hierarchy, add a custom link on Account, and customize a Global Quick Action are not valid or feasible options.

LEFT(Account.Zip_Code_c, 5) is the correct formula to display only the first five digits of Zip Code from the parent Account. LEFT function returns the specified number of characters from the left side of a text string. Account.Zip_Code_c is the custom text field that stores the Zip Code on Account object. 5 is the number of characters to return from the left side of the Zip Code. The other options are not valid formulas or functions.