Here's the question you clicked on:
musicemma
The human body has an energy efficiency of:
The human body has an energy efficiency of: A. 5% B. 50% C. 75% D. 100%
The human body efficiency is determined by the temperatures of the heat source and the heat sink. Hence, Efficiency = [Tbody - Tsink]/Tbody = [310-293]/310 = 5.5%. Therefore, the closest answer from the choices is chocice A.
I thought it was A, but I'm not sure