New PMP Question & Answers with explanation

The purpose of this process is concerned with satisfying the needs of the stakeholders, managing communications with them, resolving issues, managing their expectations, and more, and this process also relates to this area of the PMI Code of Ethics and Professional Conduct.
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People, interaction, community, communication, skills, and talents are all core values of what family of methodologies?
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You are using the data representation tool and technique of the Manage Quality process with one of the product deliverables to organize potential causes of defects into groups. Which tool and technique does this describe?
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Kristin has recently joined a growing startup company as a project manager in the medical device industry, reporting to the head of research and development. During her first week, she spends time familiarizing herself with the organization and her responsibilities. She is pleasantly surprised to learn that she will be directly responsible for managing her own project budgets. What type of organizational structure does Kristin work within?
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The lowest level of the WBS is referred to as which of the following?
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