Answer the following question given this paragraph: 

Scientists think that glycolysis evolved before the other stages of cellular respiration. This is because the other stages need oxygen, whereas glycolysis does not, and there was no oxygen in Earth’s atmosphere when life first evolved about 3.5 to 4 billion years ago. Cellular respiration that proceeds without oxygen is called anaerobic respiration .


Q: What do you call cellular respiration that does not need oxygen to proceed?

 Choices:

- aerobic respiration

- malolactic respiration

- cellular breathing

- anaerobic respiration

A:
anaerobic respiration
