Which of the following are benzylic alcohols?

We know, Benzylic alcohols are compounds having alcohol as a functional group on a carbon atom that is directly attached to the Benzene ring.

Thus, options (ii) and (iii) are Benzylic alcohols because the –OH groups are attached on a carbon atom that is directly attached to the Benzene ring.

Options (i) and (iv) are incorrect because the –OH group in both the options is not attached to a carbon atom that is directly attached to the Benzene ring. Hence, options (ii) and (iii) are incorrect.