Last night, Aliza ate 3 7/8 candy canes. AJ ate 2 1/4 candy canes. How much more candy canes did Aliza eat than AJ?
a) 1 1/2 candy canes
b) 1 5/8 candy canes
c) 2 5/8 candy canes
d) 3 3/4 candy canes