Question
Assertion: The immune responses of old persons become weak.
Reason: Thymus is degenerated in old individuals resulting in a decreased production of thymosin
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Solution
A.
If both assertion and reason are true and reason is the correct explanation of assertion.