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The reason that the cost performance index (CPI) is shown as a ratio is to______________
Correct Answer: C
Explanation/Reference: Explanation: Because schedule performance index (SPI) and cost performance index (CPI) are expressed as ratios, they can be used to show performance for a specific time period or trends over a long-time horizon. Additionally, there is no need to disclose confidential financial data to convey the project's status to one's customers; they should not have a need to know such information, unless there is a contractual requirement to do so.