Assertion (A): Lysosomal enzymes work best at acidic pH.
Reason (R): Lysosomes contain as many as 4 kinds of hydrolytic enzymes.

Options

A. Both Assertion and Reason are true and Reason is the correct explanation for Assertion.
B. Both Assertion and Reason are true but Reason is not the correct explanation for Assertion.
C. Assertion is true and Reason is false.
D. Assertion is false and Reason is true.

Explanation

Lysosomes are cell organelles which contain many kinds of powerful digestive (hydrolytic) enzymes. These are made up of acidic hydrolases. Lysosomal enzymes are capable of breaking down wide variety of molecules, they work best acidic PHS. These enzymes are inactive as long as the membrane is intact or does not come in contact with other cellular structures. Both assertion and reason are correct, but reason does not support. Hence, the correct option is (b).