PLEASE HELP WILL GIVE BRAINLIST!!!

The Kims drove 450 miles in each direction to Grandmother's house and back again. If their
car gets 25 miles per gallon and their cost for gasoline was $3.25 per gallon for the trip to
Grandmother's house, but $3.50 per gallon for the return trip, how much more money did they
spend for gasoline returning from Grandmother's house than they spent going to Grandmother's?

A) $2.25
B) $4.50
C) $6.25
D) $9.00