Cellular Respiration and the Combustion of Fuel in a Car

Cellular respiration and the combustion of fuel in a car engine are similar in many ways, but they also differ. What is one way in which they are different?

A) Cellular respiration occurs in many steps and the combustion of fuel in a single step.
B) Cellular respiration is exothermic and the combustion of fuel is endothermic.
C) Cellular respiration is endothermic and the combustion of fuel is exothermic.
D) Cellular respiration is fast and the combustion of fuel is slow.
E) Cellular respiration requires oxygen and the combustion of fuel does not.