Which of the following sentences is correctly punctuated?
A. He brought me a bar of chocolate, some crisps and a bottle of white wine.
B. He brought me a bar of chocolate some crisps and a bottle of white wine.
C. He brought me a bar of chocolate, some crisps and a bottle of white wine.
D. He brought me a bar of chocolate, some crisps, and a bottle of white wine.