New PMP Question & Answers with explanation

Which of the following is incorrect regarding a bidders conference?
Select one
Which of the following is not an input to the Conduct Procurements process?
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A project manager is looking at a make-or-buy analysis as part of the Procurement Management process. What type of costs should the project manager consider for this analysis?
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A buyer and seller set the rates for junior engineers, senior engineers, architects, and other predefined roles. In what type of contract would this be applicable?
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A number of deliverables were submitted to the buyer as part of a project. Where would the project manager find documentation on the requirements for formal deliverable acceptance and on how nonconforming deliverables can be addressed?
Select one