New PMP Question & Answers with explanation

Which organizational management theorist developed Theory X and Theory Y?
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A project manager is facilitating a meeting to further define user stories for the upcoming iteration. Two team members involved, Bob and Jenny, are very vocal during the start of the meeting, with Jenny passionately noting that the second user story should be punted to the next iteration. She moves on to the next user story, ignoring Bob’s opposing views on the topic. Bob accepts the decision hesitantly and remains quiet for the remainder of the meeting, accepting other decisions made by Jenny and the rest of the team. At the end of the meeting, the project manager notes to Bob that she will prioritize user story #2 at the top of the backlog, to be pulled into the iteration should capacity allow. Which of the following conflict-resolution technique did Bob use in this scenario?
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To increase communication across ambiguous projects, a project manager using an Agile approach is likely to do what?
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You are working on a project that involves multiple vendors. One of the vendors has been difficult to work with and is not very cooperative. You have received the latest invoice from them for services and disagree with them about the charges they have listed for the change request that was submitted last month. When you called and spoke with your representative at the company, they refused to budge on the charges. You will likely need to use an alternative dispute resolution (ADR) to get to the bottom of this matter. Which tool and technique of the Control Procurements process does this question describe?
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This motivational theory states that people will behave a certain way if they think there will be a good reward for doing so.
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