In Earned Value Analysis,the 50-50 Rule Assumes That __________

In earned value analysis,the 50-50 rule assumes that __________.

A) 50 percent is earned when the task is half done and 50 percent is earned at completion
B) 50 percent is earned when the task begins and 50 percent is earned at completion
C) 50 percent is earned when the task begins and 50 percent is earned at the halfway stage
D) 50 percent is earned when the project is planned and 50 percent is earned when the project is over