Why is glycerol primarily used in aerobic conditions when entering glycolysis?

Glycerol generates less NADH than glucose, making it unsuitable for aerobic conditions.

Glycerol does not generate any ATP, making it inefficient for anaerobic conditions.

Glycerol generates excess NADH, which cannot be efficiently used in fermentation, making it more suitable for aerobic conditions.

Glycerol is converted directly to pyruvate, bypassing glycolysis.