What Can Be Correctly Concluded from the Fact That the Following

What can be correctly concluded from the fact that the following acid-base reaction proceeds to the right, as written?

NH₂^-(aq) + HSO₄^-(aq) NH₃(aq) ⁺ SO₄^2-(aq)

A) NH₃ is a stronger base than NH₂^-.
B) NH₃ is a stronger acid than HSO₄^-.
C) NH₃ is a weaker acid than NH₂^-.
D) NH₃ is a weaker base than HSO₄^-.
E) NH₃ is a weaker acid than HSO₄^-.