If NH₃ is a weak base, what can be inferred about its conjugate acid, NH₄⁺?

• A. NH₄⁺ is a strong base.
• B. NH₄⁺ is a weak conjugate acid.
• C. NH₄⁺ is a relatively strong conjugate acid.
• D. NH₄⁺ does not act as an acid.

Answer: (C)