Answer: Option (A) is the correct answer.
Explanation:
It is known that acids are the species that donate hydrogen ions ([tex]H^{+}[/tex]) or protons upon dissociation in an aqueous solution.
For example, [tex]HCl \rightarrow H^{+} + Cl^{-}[/tex]
Also, bases are the species which are electron rich and hence they donate electrons to an electron deficient atom.
For example, [tex]NH_{3}[/tex] is a base.
Therefore, we can conclude that out of the given options correct pairing is acid: proton; base: electron pair.
