Assertion : Coughing and sneezing are necessary.
Reason : Coughing and sneezing are reflex actions.

Options

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B. If both the assertion and the reason are true but the reason is not a correct explanation of the assertion
C. If the assertion is true but the reason is false
D. If both the assertion and reason are false

Answer

B

Explanation

Coughing and sneezing are necessary to keep the air passages free from foreign matter. It is a reflex action under nervous control.