With Respect to Diet-Induced Thermogenesis,dietary Fat Has a Lower Metabolic

With respect to diet-induced thermogenesis,dietary fat has a lower metabolic cost than protein.What does this mean?

A) It requires more energy to oxidize or store dietary fat than protein.
B) Fat metabolism generates more toxic metabolic wastes than protein metabolism.
C) It requires less energy to oxidize and store dietary fat than protein.
D) Fat metabolism generates less toxic metabolic wastes than protein metabolism.