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_(3)COOH)(CH_(3)COOH_(2)^(+),Cl^(-))`
B. `(HCl,CH_(3)COOH_(2)^(+))` and `(CH_(3)COOH,Cl^(-))`
C. `(CH_(3)COOH_(2)^(+),HCl)` and `(Cl^(-),CH_(3)COOH)`
D. `(HCl,Cl^(-)) ` and `(CH_(3)COOH_(2)^(+),CH_(3)COOH)`