When discussing acids and bases, any substance that accepts a proton, by definition, is considered a(n)

A. Arrhenius acid.
B. Arrhenius base.
C. Brønsted-Lowry acid.
D. Brønsted-Lowry base.


D, Bronsted Lowry base for sure because its definition is any substance that accepts a proton (or essentially a H+ ion). Bronsted Lowry acids donate protons to other substances and the other substances that accepts those protons become Bronsted Lowry bases. Arrenhius acids are substances that must donate H+ and Arrnehius bases, on the other hand, must donate OH- and so neither are correct for this question.