If the Strength of the Following Acids Increases from Left

Multiple Choice

If the strength of the following acids increases from left to right
CH₃NH₂ < CH₃NH₃⁺ < C₆H₅NH₃ ⁺ < C₆H₅CO₂H < HCl

The order of increasing base strength, reading from left to right, must be:

A) CH₃NH^- < CH₃NH₂ < C₆H₅NH₂ < C₆H₅CO₂^- < Cl^-
B) Cl^- < C₆H₅CO₂^- < C₆H₅NH₂ < CH₃NH₂ < CH₃NH^-
C) C₆H₅NH₂ < CH₃NH₂ < Cl^- < C₆H₅CO₂^- < CH₃NH^-
D) CH₃NH^- < C₆H₅CO₂^- < Cl^- < CH₃NH₂ < C₆H₅NH₂
E) none of the above