Consider the following statements:1. In work breakdown structure, top-down approach is adopted.2. Duration along critical path is the shortest duration permissible.3. PERT is probabilistic in its approach.Which of the above statements are correct?

Consider the following statements:1. In work breakdown structure, top-

1.	Consider the following statements:1. In work breakdown structure, top-down approach is adopted.2. Duration along critical path is the shortest duration permissible.3. PERT is probabilistic in its approach.Which of the above statements are correct?
A.	1 and 2 only
B.	1 and 3 only
C.	2 and 3 only
D.	1, 2 and 3
Answer» E.