For the purpose of Earned Value Analysis (EVA), Joe decides to count a task 50% complete when any work has been done on the task. The task will be considered 100% complete when it is finished. Joe is using which of the following rules to indicate progress on a task?

A) 50-50 rule    B) 0-100 rule   C)0-50-100 rule  D) 80-20 rule

Answer is given as A) 50-50 rule