New PMP Question & Answers with explanation

Which of the following are short, textual descriptions of required functionality often developed during a requirements gathering workshop:
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The banks in the Ukraine have raised the annual interest rates sharply to 30 percent. You have the option to invest your money either in Ukrainian banks or to build a small factory for a client. The total cost of building the factory will be $12 million but it will spread evenly over one year ($1 million payable by the end of each month for the next 12 months). The client will make a payment of $3.9 million at the end of each quarter from the start of the project. Which of the following is the best option (if you are only considering the return on investment)?
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Configuration management tool selection should be based on the needs of the project stakeholders including organizational and environmental considerations and/or constraints. Which of the following is not a key configuration management consideration while selecting an appropriate configuration management tool for a project?
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The WBS represents all product and project work. The total work at the lowest levels should roll up to the higher levels so that nothing is left out and no extra work is performed. This principle is also the:
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Which of the following is an example of a chart, used on agile projects, that tracks the work that remains to be completed in the iteration backlog?
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