Assertion (A): Scientific knowledge changes with new discoveries. Reason (R): Scientists always accept old ideas without testing them again.

Options

Option A

Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.

Option B

Both Assertion and Reason are true, but Reason is not the correct explanation.

Option C is correct

Assertion is true, but Reason is false.

Option D

Assertion is false, but Reason is true.

Explanation

Scientific knowledge is dynamic and evolves with new evidence. The scientific method encourages continuous testing and revision of existing theories, not blind acceptance.