【单选题】Read the paragraph from the introduction [paragraphs 1-3]. Carter is the first ex-president to turn 95 years old. His one-term presidency ended in 1981. He has been an ex-president for almost 39 years...
A.
How is Jimmy Carter different from other ex-presidents?
B.
When did Jimmy Carter celebrate his 95th birthday?
C.
What did Jimmy Carter do while he was the president?