What Is the Net Power That a Dog with Surface

Multiple Choice

What is the net power that a dog with surface area of 0.075 m² radiates if his emissivity is 0.75, his skin temperature is 315 K, and he is in a room with a temperature of 290 K? The Stefan-Boltzmann constant is 5.67 x 10^-8 W/(m²·K⁴) .

A) 9.0 W
B) 6.0 W
C) 8.0 W
D) 15 W
E) 18 W