Which pairing matches the type of substance with the item it donates? a. acid: h ion; base: proton b. acid: proton; base: electron pair c. acid: electron pair; base: proton d. acid: electron pair; base: h ion

The correct option is B.

A Bronsted Lowry [which is usually a Lewis base] base can donate a pair of electrons to the hydrogen ion. The proton is a Lewis acid and it can accept a pair of electrons.

A Lewis acid is a substance that can accept a pair of non bonding electrons while a Lewis base is a substance which can donate a pair of non bonding electrons.

B is the correct answer so yeah i think this is 20 characters