question no.7 of pg.27 of general organic chemistry module.....for stability of carbocation,we must check the +I effect na??

OH" group attached to aromatic ring is electrons donor because it has two lone pairs of electrons on oxygen atom which may involve in resonance process, but "OH" group attached to saturated carbon act as electrons attracting group due to high electronegativity of oxygen.

That’s why here the answer will be B