What Is the Solubility, in Moles Per Liter, of Ag₂CO₃

What is the solubility, in moles per liter, of Ag₂CO₃ (K_sp = 8.1 × 10^-12) , in 0.0300 M Na₂CO₃ solution?Hint: Be sure to account for the presence of a common ion. You should also be able to simplify the math because the solubility is very low.

A) 8.2 × 10^-6
B) 9.0 × 10^-9
C) 3.0 × 10^-7
D) 4.0 × 10^-10
E) 2.7 × 10^-9