Assertion: Chock coil is the prefered over a resistor to adjust current in an `AC` circuit.
Reason: Power factor for inductance is zero.
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 the assertion and reason both are false.