Answer :
Answer: Option B
Explanation: Enzymes are biological catalyst that improves the rate of reaction. They will help in fasting up the chemical reactions that is taking place inside the body.
Enzymes can improve the result of exercise. All the enzymes are proteinous in nature. Enzymes help in carrying out various types of metabolic reactions, including digestion, respiration , et cetera.
There is only one way by which the enzymes cannot help the body, when it is in inactive form.