According to the Rule of 72,you Can Do Which One

According to the Rule of 72,you can do which one of the following?

A) double your money in five years at 7.2 percent interest
B) double your money in 7.2 years at 8 percent interest
C) double your money in 5 years at 14.4 percent interest
D) triple your money in 7.2 years at 5 percent interest
E) triple your money at 10 percent interest in 7.2 years