HELP! Which sentence contains an error in the use of end marks or commas? I think the answer is B but I'm not 100% sure.

a. Her closet was jam-packed with jeans, shirts, skirts, and sweaters.

b. Jasmine, would you like to take the hamster home over the weekend?

c. The shy skittish cat hid under the bed all day and wouldn't come out.

d. In my opinion, I think you should have gone with darker blue paint on the walls.