Change the Units to Like Units with a Unit Analysis

Change the units to like units with a unit analysis multiplication, and simplify the ratio. Useful facts:
1 yard = 3 feet
1 mile = 5,280 feet
1 yard = 36 inches
2 feet to 3 inches

A) 18 to 1
B) 2 to 3
C) 12 to 1
D) 1 to 18
E) 8 to 1