Which of the following is TRUE about John Atta Mills？A．He devoted himself in the fight of

Which of the following is TRUE about John Atta Mills？

A．He devoted himself in the fight of Ghana"s independence.

B．He contributed a lot to the stability of Ghana.

C．He was the first elected President of Ghana.

D．He became the President in December, 2008.

请帮忙给出正确答案和分析，谢谢！