In the Following Reaction in Aqueous Solution, the Acid Reactant $\leftrightarrows$

Multiple Choice

In the following reaction in aqueous solution, the acid reactant is ________, and its conjugate base product is ________.
CH₃NH₂ + HSO₄^- $\leftrightarrows$
CH₃NH₃⁺ + SO₄^2-

A) CH₃NH₂; CH₃NH₃⁺
B) CH₃NH₂; SO₄^2-
C) HSO₄^-; CH₃NH₃⁺
D) HSO₄^-; SO₄^2-
E) HSO₄^-; H₃O⁺