To a Concentrated Buffer of PH 9

Multiple Choice

To a concentrated buffer of pH 9.0 was added an equal volume of an aqueous solution that was 0.20 M in each of the ions Ca²⁺,Cd²⁺,and Cu²⁺.The expected precipitate would consist of:
Salt: calcium hydroxide cadmium hydroxide copper(II) hydroxide
K_sp: 4.0 × 10^-6 2.0 × 10^-14 1.8 × 10^-19

A) only Ca(OH) ₂
B) only Cd(OH) ₂
C) only Cu(OH) ₂
D) only Cd(OH) ₂ and Cu(OH) ₂
E) Ca(OH) ₂,Cd(OH) ₂,and Cu(OH) ₂