Which statement best explains how aerobic respiration functions to cycle matter and energy within a cell?

a
Respiration produces glucose from carbon dioxide and releases energy in the form of free electrons.
b
Respiration uses sunlight energy to create glucose from carbon dioxide and water.
c
Respiration breaks down glucose and releases energy in the form of ATP.
d
Respiration converts glucose to alcohol using free electrons as energy.

c

Respiration breaks down glucose and releases energy in the form of ATP.