Which is the following is the correct order of acidic strength?
A. `CF_(3)COOHgtCHCl_(2)COOHgtHCOOHgtC_(6)H_(5)CH_(2)COOHgtCH_(3)COOH`
B. `CH_(3)COOHgtHCOOHgtCF_(3)COOHgtCHCl_(2)COOHgtC_(6)H_(5)CH_(2)COOH`
C. `HCOOHgtC_(6)H_(5)CH_(2)COOHgtCF_(3)COOHgtCHCl_(2)COOHgtC_(6)H_(5)CH_(2)COOH`
D. `C_(6)H_(5)CH_(2)COOHgtHCOOHgtCHCl_(2)COOHgtCF_(3)COOHgtCH_(3)COOH`
