The solubility product constant `(K_(sp))` of salts of types `MX, MX_(2)`, and `M_(3)X` at temperature `T` are `4.0 xx 10^(-8), 3.2 xx 10^(-14)`, and `2.7 xx 10^(-15)`, respectively. The solubilities of the salts at temperature `T` are in the order
A. `MX gt MX_(2) gt M_(3)X`
B. `M_(3)X lt MX_(2) lt MX`
C. `MX_(2) gt M_(3)X gt MX`
D. `MX gt M_(3)X gt MX_(2)`