Assertion : When a stone tied to a string is revolved along a vertical circle, the string has maximum tendency to break, when the stone is at the lowermost point. Reason : It is because, the tension in the string is maximum at the lowermost point.

Options

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