What are some activities the project team will perform in executing project work during the Explore Phase?

What are some activities the project team will perform in executing project work during the Explore Phase?
A . Collect project data and report on progress and performance
B . Manage risks and implement risk response activities
C . Manage Background Jobs, Input and Output.
D . Deal with user authorization requests.
E . Establish and manage internal and external communications

Answer: A,B,E