Of the Compounds in the Table Below, _______ Is The \underline{\text

Of the compounds in the table below, _______ is the $\underline{\text{ least }}$ soluble.

A) CdS
B) CuS
C) PbS
D) MnCO₃
E) The three sulfides are equally soluble, and are all less soluble than MnCO₃.