This gquestion has four parts. Please answer all parts (a, b, , and d) in the same textbox below and label each section appropriately with the corresponding letter (a, b, , and d). Consider the project given below. Activit Dependencies Duration Y pen (weeks) A (START) o [ a o [ A e [ s o a. Draw the network diagram and indicate the early/late start/end times for all the activities. (5 pts + 10 pts). [A hand-drawn diagram is acceptable and recommended to save your time. If you need to insert an image of a diagram, please click "Insert" and then select "Image"] b. What is the critical path (5 pts). c. If activity B was uncertain in duration, and could be 1 week or 5 weeks with equal likelihood, what is the average time taken to finish the project? (5 pts). d. When activity B is uncertain (as above), when should you schedule the start time of activity E? (5 pts)