Answer:
Explanation: The talk test is a simply way to measure relative intensity. In general, If you're doing moderate- intensity activity, you can talk but not sing during the activity.
During exercise, we undergo respiration. Therefore, we need oxygen and release carbon dioxide and water as waste products. When exercise become vigorous, we only run on anaerobic respiration with little oxygen, then lactic acid becomes a waste product instead of carbon dioxide and water. This occurs due to incomplete breakdown of glucose.
Best answer is C. lactic acid.
Vegans do not eat any animal product including dairy and fish
