Suppose a Star Has Twice the Surface Temperature of the Sun

Multiple Choice

Suppose a star has twice the surface temperature of the sun and also twice the radius. How many times larger is the rate at which this star emits energy compared to the rate at which the sun emits energy?

A) It radiates at the same rate as the sun.
B) 2 times
C) 4 times
D) 8 times
E) 16 times
F) 32 times
G) 64 times