During the Carbon Cycle, Plants and Some Other Organisms "Fix

During the carbon cycle, plants and some other organisms "fix carbon-containing molecules, while other organisms eat those molecules and release CO₂. During the carbon cycle, CO₂ is produced during ________ and fixed during ________.

A) aerobic respiration; photosynthesis
B) aerobic respiration; photosynthesis and aerobic respiration
C) photosynthesis; aerobic respiration
D) aerobic respiration and photosynthesis; aerobic respiration
E) aerobic respiration; aerobic respiration