New PMP Question & Answers with explanation

Given multiple alternatives, the group decision method that allows the largest block in a group to decide (even if more than 50 percent of the members of the group do not support the decision) is:
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A project manager is preparing the WBS for a software project. The WBS includes all the product and project work but excludes the project management work. From the following choices, choose a statement that correctly describes this situation.
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A project manager is analyzing the relationship between the consumption of project funds and the work being accomplished for such expenditures. In which project management process would this be done?
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You are reviewing the response to an RFP issued by your company for a project that will last a year and exceed US$5 million. Three vendors have been shortlisted. The first, Nosteltec, Inc., is a relatively new company in this industry. It has assembled a team of industry experts with vast industry experience and qualifications. The second company, Xen Contractor, has been in business for 20 years. You and your company have a long and positive history working with this vendor. The third company is SonoNet LLC. It has been in business for 10 years and has a reputation for extensive expertise and superior delivery. They are also well-known for being one of the more expensive providers in the market. You have many relationships with the Xen Contractor staff, which you established during prior procurement contracts with this company. As a result, a project manager from Xen Contractor, with whom you are friendly both personally and professionally, calls you for clarification on a point
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A certain project was in the Collect Requirements phase. The product’s eventual users could not define their requirements. In this scenario, which of the following tools could have helped determine the requirements?
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