The Surface of the Sun Has a Temperature of About $\sigma$

Multiple Choice

The surface of the Sun has a temperature of about 5800 K. If the radius of the Sun is 7*10⁸ m, determine the power output of the sun. (Take e = 1, and $\sigma$ = 5.67 *10^-8 W/m² ·K⁴) .

A) 3.95 * 10²⁶ W
B) 5.17 * 10²⁷ W
C) 9.62 * 10²⁸ W
D) 6.96 * 10³⁰ W