Physics · Electrostatic Potential

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The net electrostatic field inside a conductor placed in a static external electric field is always zero. Reason (R): The free charge carriers in the conductor redistribute themselves until the electric field produced by induced surface charges exactly cancels the external field inside the conductor. In the light of the above statements, choose the correct answer from the options given below:

1. A
   Both (A) and (R) are true and (R) is the correct explanation of (A).
2. B
   Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
3. C
   is true but (R) is false.
4. D
   is false but (R) is true.