Correct option is (d)
n phenol, \(\overset {••}{\underset {••}{O}} H\) group is activating due to + M and + E effects due to presence of two lone pair of electrons on the key (oxygen) atom. On the other hand, -CH3 group has no lone pair of electrons on the key (carbon) atom and hence does not exert + M and + E effects, of course it is activating group due to weak + I effect of the -CH3 group.