Choose the best way to punctuate the sentence.
We ate steak ____ baked potatoes ___ and corn for dinner last night.
A.We ate steak.baked potatoes,and corn for dinner last night.
B.We ate steak, baked potatoes. And corn for dinner last night.
C.We ate steak, baked potatoes, and corn for dinner last night.
D.We ate steak. Baked potatoes, and corn, for dinner last night.