New PMP Question & Answers with explanation

You are a project manager for Fly Me to Miami travel services. You need to obtain some services for your project on contract and have published an RFP. You are in the Conduct Procurements process and know that all of the following statements are true except for which one?
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Marysil is an enterprise project manager for Cups on Fire. To date, she has identified risks, analyzed them, and developed risk responses for her project. Now, she and the team are executing the work and responding to risk triggers. What project management artifact will they need?
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A project manager performing Closing activities is currently focused on addressing the highest business value items first. What life cycle is she using to deliver her project?
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As part of kicking off a project, the product manager meets with the project team to review the team charter and establish team norms. The product manager also stresses the importance of quality and sets the expectation that it will be integrated into every iteration. Managing quality is sometimes called what?
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How are quality improvements implemented?
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