(c) Explain the following EVM results: Project A (CV = 400, SV = -700); Project B (CPI = 1.30, SPI = 0.74); Project C (CV = -850, SV = -450); Project D (CPI = 0.34, SPI = 0.18); Project E (CPI = 1.0, SPI = 1.0). In each situation, provide a plan of corrective action to the project manager, if any is recommended