What is the correct balanced equation for the following:

potassium iodide + lead (II) sulfide - -> lead (ii) iodide + potassium sulfide

(A) 2KI + PbS - > Pbl2, + K2S

(B) KI + PbS-> Pbl + KS

(C) KI + Pb25 - > Pb2l + KS

(D) 2KI + Pb25 - > Pb2l2 + K2s

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