Use the Following Acid Ionization Constants to Identify the Correct $\quad$

Use the following acid ionization constants to identify the correct decreasing order of base strengths.
HF $\quad$ $\quad$ K_a = 6.8 $\times$ 10^-4
HNO₂ $\quad$ K_a = 4.5 $\times$ 10^-4
HCN $\quad$ K_a = 6.2 $\times$ 10^-10

A) CN^- > NO₂^- > F^-
B) NO₂^- > F^- > CN^-
C) F^- > CN^- > NO₂^-
D) F^- > NO₂^- > CN^-
E) NO₂^- > CN^- > F^-