Which statement about responsive breakpoints is true?

You are configuring an application to process travel reservations. The reservation case creates childcases for each booking component: flight, hotel stay, and vehicle rental.How do you update the total cost of the reservation as users update each child case?

An online retailer allows customers to select a courier service for deliveries. The list of available courier services is drawn from a data type sourced in the Pega database. The Fulfillment department wants to allow local warehouse managers to add courier services to mitigate increases in delivery times and remove courier services that fail to meet delivery metrics.
Which two options are required to allow local warehouse managers to update courier service records in production? (Choose two.)

To process an employee retirement package, the system requires approvals from the supervising manager, and the ...
How do you implement the requirements so that each approver can work independently?

Which two items must be provided by the user to add an external data source to a data object? (Choose Two)]