Assertion (A) : In styrene geometrical isomerism is not observed.
Reason (R) : All the atoms in styrene molecule are in one plane
(A) Assertion (A) and reason (R) both are correct and reason (R) is correct explanation of assertion (A).
(B) Assertion (A) and reason (R) both are correct but reason (R) is not correct explanation of assertion (A).
(C) Assertion (A) is correct while reason (R) is incorrect.
(D) Assertion (A) is incorrect while reason (R) is correct.