Which of the Following Are Methods U

Multiple Choice

Which of the following are methods U.S.senators can use to block or delay debate on a bill?

A) filibustering, calling for a cloture vote, and logrolling
B) filibustering, adding amendments to a bill, and placing a hold on a bill
C) calling for a cloture vote, calling for a party unity vote, and logrolling
D) calling for a cloture vote, adding amendments to a bill, and logrolling