Elijah and Riley are playing a board game. Elijah chooses the dragon for his game piece, and Riley chooses the cat for hers. The dragon is about 1/2 inch tall, and the cat is about 7/8 inch tall. How much taller is the cat than the dragon?
A. 1/4 in.
B. 3/8 in.
C. 1/2 in.
D. 1 and 3/8 in.