Which of the following order is expected to be correct ?
A. `pK_(a)(ClCH_(2)COOH) gt pK_(a)(CH_(3)COOH) lt pK_(a) (CH_(3)CH_(2)COOH)`
B. `pK_(a)(ClCH_(2)COOH) lt pK_(a)(CH_(3)COOH) lt pK_(a) (CH_(3)CH_(2)COOH)`
C. `pK_(a)(ClCH_(2)COOH) gt pK_(a)(CH_(3)COOH) gt pK_(a) (CH_(3)CH_(2)COOH)`
D. `pK_(a)(ClCH_(2)COOH) lt pK_(a)(CH_(3)COOH) gt pK_(a) (CH_(3)CH_(2)COOH)`