Question

In this question, a statement of Assertion (A) is followed by a statement of Reason (R). Read the statements and choose the appropriate option:
Assertion (A): Students facing important examinations can be highly stressed.
Reason (R): Reduced levels of natural killer cell cytotoxicity have been found in people who are highly stressed.

• A. Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A).
• B. Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
• C. Assertion (A) is true, but Reason (R) is false.
• D. Assertion (A) is false, but Reason (R) is true.

Hint:

In Assertion and Reason type questions, it is crucial to distinguish between correlation and causation. Even if both are true, the reason may not explain the assertion.

Answer 1

The Correct Option is B

Assertion (A): It is accurate that examinations are a source of significant stress for students due to their demanding nature.
Reason (R): It is also accurate that heightened stress correlates with reduced natural killer (NK) cell cytotoxicity, a documented biological response to chronic stress.
Explanation: However, the reduction in NK cell cytotoxicity is a result of stress, not its cause. Therefore, while both statements are true, the reason does not explain the assertion.