Which three statements about checkpoints are correct?

A. Interviews can have checkpoints after hosen screens.

B. Interviews must have at least one checkpoint.

C. Interviews can have checkpoints after every screen.

D. A data connection is required to configure checkpoints for an interview.

E. Checkpoints can be configured for Service Cloud connections, but not for other web service connections.

F. Checkpoints can be configured for web interviews, but not Policy Automation Mobile interviews.