According to the Bronsted-Lowry definition,

an acid is a proton acceptor

a base is a proton donor

a base produces H+ ions in aqueous solutions

a base is a proton acceptor

The correct answer is 'a base is a proton acceptor .'

Explanation:

According to the Bronsted-Lowry conjugate acid-base theory:

        Acid → + Conjugate base

       Base + →  Conjugate acid

According to the question the correct answer is 'a base is a proton acceptor.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.