Which of the Following Is True About the Action of CAP

Multiple Choice

Which of the following is true about the action of CAP at the lac promoter?

A) CAP monomer binds directly to the promoter stimulating polymerase to bind.
B) CAP-AMP blocks recruitment of polymerase to the promoter.
C) CAP blocks the $\alpha$ CTD of RNA polymerase.
D) Binding of the CAP-cAMP to the lac activator-binding site recruits RNA polymerase.
E) CAP monomer binds directly to the promoter stimulating polymerase to bind and CAP blocks the $\alpha$ CTD of RNA polymerase are correct.