Which requirements must be met before you can use custom offline bidding? Note: there are 3 correct answers to this question.

Which requirements must be met before you can use custom offline bidding? Note: there are 3 correct answers to this question.
A . Notifications will need to be enabled
B. Content items must be set for offline responses
C. Alternative responses must be enabled
D. The template must be published and set to allow offline responses
E. The event must have bidding rules enabled for offline responses

Answer: B,D,E