A mixture of solid `MSO_(4)` and solid `NSO_(4)` is shacken up with until saturated solution i.e. equilibrium was established given that `K_(sp) MSO_(4)= 7.5 xx 10^(-7), K_(sp)NSO_(4)=1.5 xx 10^(-9)` hence. Solubility of `M^(2+)` is

Options

A. `1.73 xx 10^(-6)`
B. `8.65 xx 10^(-7)`
C. `8.65 xx 10^(-4)`
D. `10.4 xx 10^(-10)`