Rank the Following Three Acids in Terms of Acid Strength

Multiple Choice

Rank the following three acids in terms of acid strength given the following information:
Acid K _a p K _a HF 6.9×10 ^{- 4} -- CH₃COOH -- 4.74 HNO₂ 4.5×10 ^{- 4}

A) (weakest acid) HF < CH₃COOH < HNO₂ (strongest acid)
B) (weakest acid) CH₃COOH < HNO₂ < HF (strongest acid)
C) (weakest acid) HNO₂ < HF < CH₃COOH (strongest acid)
D) (weakest acid) HF < HNO₂ < CH₃COOH (strongest acid)
E) (weakest acid) HNO₂ < CH₃COOH < HF (strongest acid)