What component of the body's metabolism describes the energy required to maintain essential body processes such as respiration,circulation,and temperature regulation?

A) dietary thermogenesis
B) physical activity
C) resting metabolic rate
D) convection

Resting metabolic rate (RMR) is the component of metabolism that describes the energy required to maintain essential body processes such as respiration, circulation, and temperature regulation, while the body is at rest. RMR accounts for the largest portion of daily energy expenditure, typically around 60-75% of total energy expenditure. Dietary thermogenesis refers to the energy expended by the body to digest, absorb, and dispose of nutrients from the diet, while physical activity and convection represent different forms of energy expenditure related to movement and heat transfer, respectively.