The following equilibrium is established when hydrogen chloride is dissolved in acetic acid `HCl(aq)+CH_3COOH(aq)hArrCl^(-)(aq)+CH_3COOH_2^(+)(aq)`
The set that characterises the conjugate acid-base pairs is :
A. `(HCl, CH_3COOH) and (CH_3COOH_2^(+), Cl^- )`
B. `(HCl, CH_3COOH_2^+) and (CH_3COOH, Cl^-)`
C. `(CH_2COOH_2^+,HCl) and (Cl^-,CH_3COOH)`
D. `(HCl, Cl^-) and (CH_3COOH_2^(+), CH_3COOH)`
