Which of the following reasons explain why President Kennedy was slow

Which of the following reasons explain why President Kennedy was slow to introduce a civil rights bill?

A) The appointment of Thurgood Marshall as a federal judge was enough.
B) Many white voters were afraid that civil rights legislation would lead to race riots.
C) He was afraid of being blackmailed by J. Edgar Hoover.
D) There were too many southern Senators with high seniority.

ANSWER
Answer: D