The correct answer is C. Less amount of energy and alcohol.

Anaerobic respiration occurs without oxygen (O₂), whereas aerobic respiration occurs with oxygen. The main differences between the two processes are:

- Energy yield: Anaerobic respiration produces less energy (2 ATP molecules) compared to aerobic respiration (36-38 ATP molecules).

- End products: Anaerobic respiration produces ethanol (alcohol) and carbon dioxide (CO₂) as end products, whereas aerobic respiration produces carbon dioxide and water.

The other options are not correct:

A. Anaerobic respiration produces less energy and alcohol, not water.

B. Anaerobic respiration produces less energy, not greater energy.

D. Anaerobic respiration produces alcohol, not water.