2. In which one of the following sentences is the comma

used correctly?
A. Frieda packed her suitcase with clothing, accessories and
paperback books.
B. Johnson is my attorney, he finally broke the silence.
C. Giving it their best, none of the swimmers broke John
Gore’s record.
D. Patrick, the star player is the only freshman on the team.

Which do YOU THINK is the answer and why?