(a) conversion of pyruvate to ethanol
(b) conversion of pyruvate to glucose
(c) non-conversion of glucose to pyruvate
(d) conversion of pyruvate to lactic acid
The answer is (d) conversion of pyruvate to lactic acid
Explanation:
In the presence of oxygen, Pyruvate is broken down in mitochondria, resulting in the creation of Lactic acid. As a result of the workout, oxygen is consumed to produce energy, resulting in a lack of oxygen and the creation of lactic acid.