Three friends worked out on treadmills at the gym. Aiden walked 2 miles in 3/4 hour. Kira walked 1 3/4 mile in 30 minutes. Joe walked 1 mile in 25 minutes. Who walked at the fastest rate?
A. Aiden
B. Joe
C. Kira
D. Aiden and Joe
Hurry I need this in 5 minutes.