$\begin{array}{1 1} (a)\;\text{(a) An alcohol molecule contains nucleophilic OH atom due to which it acts as weak base when dissolved in water} \\\text{(b) An alcohol molecule contains nucleophilic oxygen atom (lone pairs on oxygen atom) due to which it acts as weak base when dissolved in water} \\ \text{(c) An alcohol molecule contains electrophilic oxygen atom due to which it acts as weak base when dissolved in water} \\ \text{(d) None of the above} \end{array} $
