menthyl $\text{(}\stackrel{\oplus }{{\text{CH}}_{\text{3}}}\text{)}$, vinyl ${\text{(CH}}_{\text{2}}\text{=}\stackrel{\text{+}}{\text{CH}}\text{)}$. Among the given options benzyl is highly stabilised by resonance and so is allylic but lesser than benzyl. Vinylic has a ${\text{sp}}^{\text{2}}$ carbocation which is unstable in nature.