Assertion : The quantity L/R possesses dimensions of time. Reason : To reduce the rate of increases of current through a solenoid should increase the time constant (L/R). [AIIMS 2002]

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