Assertion (A) : BHC is also called gammexane or 666.
Reason (R) : BHC is prepared by the reaction of benzene with Cl2 in the presence of light.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.