New PMP Question & Answers with explanation

During project initiation, the project manager performed a cost-benefit analysis that resulted in 0.6. What should the project manager do next?
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A project manager is alternating between two projects with tight deadlines. They are determined to collect lessons learned from both projects, despite having limited time to do so. How should the project manager collect the lessons learned?
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A project manager is conducting a risk analysis based on high-level scope. If expert judgment is being used, what document is being prepared?
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During which of the following project processes do key stakeholders engage with the project for the first time?
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