[单选题]
1. What is the role of oxygen inyolu17idg gn , a-r3a*-(/ru5 u lr*akz7wklf aerobic respiration?
A. It is used to make energy.
B. It reacts with glucose to form water.
C. It is used in aerobic respiration in the cytoplasm.
D. It is used in aerobic respiration in the mitochondria.