Assertion: A bulb connected in series with a solenoid is connected to `AC` source. If a soft iron core is introduced in the solenoid, the bulb will glow brighter.
Reason: On introducing soft iron core in the solenoid, the inductance increases.
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 a ssertion.
C. If assertion is true but reason is false.
D. If assertion is false but reason is true.