A body has a weight W on the surface of Earth. What is its weight on a planet whose mass is 15 times that of Earth and a radius that is 4 times that of the earth?

A

$$\frac{15}{4}W$$

B

$$\frac{16}{9}W$$

C

$$\frac{16}{7}W$$

D

$$\frac{16}{15}W$$