Which scenario is represented by this tree diagram?
A tree diagram is shown. Two boxes are shown with one above the other. Five lines are drawn out from each of those two boxes connecting to five boxes.
A. 3 kinds of soup in 4 different sizes
B. 2 pairs of shoes and 5 colors of socks
C. 2 different CDs with 6 songs on each
D. 2 types of cake, in 2 different shapes, with 2 different types of frosting