The shadow cast by an object on a sunny day is directly proportional to the height of the object. If a person 82 inches tall casts a shadow 57 inches long, how tall is a tree which casts shadow 31 feet in length? Round to the nearest hundredth if necessary
A. 150.77 feet
B. 44.6 feet
C. 69.5 feet
D. 21.55 feet