Why Didn't President Grant Seek a Third Term in 1876

Multiple Choice

Why didn't President Grant seek a third term in 1876?

A) He was restricted by the Constitution to two terms.
B) A former Confederate soldier assassinated him.
C) He felt he was too old and had achieved as much as could be expected of any president.
D) He acknowledged that many Republicans had lost confidence in his leadership.
E) The public became aware of his alcoholism.