Which speed is the fastest?
A18 feet in 20 minutes
B90 feet in 2.5 hours
C20 yards in 1.5 hours
D3 2/3 yards in 15 minutes
A18 feet in 20 minutes
B90 feet in 2.5 hours
C20 yards in 1.5 hours
D3 2/3 yards in 15 minutes