Reports in Pega serve multiple functions related to data handling and display:
A: Reports are used to assess process performance. Reports provide critical insights into various aspects of business processes, enabling organizations to monitor, evaluate, and optimize their operations.
D: Reports are used to source a list of selectable items while working in an assignment. In addition to performance monitoring, reports can dynamically generate lists of items that users can select from during their tasks, facilitating data-driven decision-making and actions within assignments.

Local data storage in Pega is typically used for purposes that require data to be readily accessible within the application itself, without the need for frequent external calls. It is ideal for: A. Defining valid values for a property, where a predefined list of values needs to be available for selection within the application, ensuring consistency and validation of data input. C. Storing reference data, which includes static or semi-static data used across the application, such as country codes, department codes, or pricing tiers. This data is integral to the application's operations and is used to populate fields, ensure data integrity, and drive business logic.

To display a checkbox only under certain conditions in a travel reservation process:
A: A visibility condition (When rule) that applies to the Select flight insurance checkbox. By using a When rule for visibility conditions, the checkbox will only be shown when the specific condition (i.e., the itinerary includes a flight) is true. This dynamically controls the display of elements based on case data.