Michelle Obama was reluctant to become involved in politics however, she is a popular first lady.

Which is the best way to correct the punctuation in this sentence?

A.
Michelle Obama was reluctant to become involved in politics; however, she is a popular first lady.

B.
Michelle Obama was reluctant to become involved in politics, however, she is a popular first lady.

C.
Michelle Obama was reluctant to become involved in politics, however she is a popular first lady.

D.
Michelle Obama was reluctant to become involved in politics however; she is a popular first lady.

A. Michelle Obama was reluctant to become involved in politics; however, she is a popular first lady.