Answer - 'b' chosen over other options. I agree with others here, on poorly worded answers & incorrect definition of EVM. Saving Changes...
Moloy ChakrabortyPrincipal Project Manager| WSP UK LTDHigh Wycombe, Buckinghamshire, United Kingdom
Confused between B and C, Earned Value is not only used to track cost but schedule as well, so overall we can say performance tracking Saving Changes...