Which Statement Is Correct. the Critical Chain Method

Multiple Choice

Which statement is correct. The critical chain method:

A) helps planners to estimate the duration of activities more accurately.
B) stresses that, in order to finish the project on the project deadline (due date) , all critical activities must be finished by their individual deadlines (due dates) .
C) forces a person working on an activity to commit to when he/she will finish the work.
D) ensures that sufficient contingency reserve is built into the schedule of each individual activity.
E) None of the above is correct.