which one is the correct answer? When a contractor purchasing system review (CPSR) results in disapproval" 1. Purchaseing system pricing weakness can uncover those elements of the offeros's proposal that necessitate more intensive cost analysis 2. Purchasing system pricing weaknesses can uncover those elements of the offeror's proposal that necessitate more intentesive cost analysis; AND Subcontract/material portion of a cost proposal may be overpriced. 3. None of the selections 4. Subcontract/material portion of a cost proposal may be overpriced