Order of `K_(a)` which can be predicted by following reaction is:
A. `NH_(3) gt Ph_(3)CH gt C_(2)H_(2) gt H_(2)O`
B. `H_(2)O gt HC-= CH gt Ph_(3)CH gt NH_(3)`
C. `HC -=CH gt H_(2)O gt H_(2)O gt Ph_(3)CH gt NH_(3)`
D. `Ph_(3)CH gt HC -= CH gt H_(2)O gt NH_(3)`
