The following table provides basic information about a construction project. Activity Activity Description Immediate Estimated Duration Predecessors A Excavate 2 weeks B Lay the foundation 4 weeks Put up the rough wall B 10 weeks D Put up the roof 6 weeks E Install the exterior 4 weeks plumbing F Install the interior E 5 weeks plumbing G Put up the exterior D 7 weeks siding H Do the exterior painting EG 9 weeks 1 Do the electrical work 7 weeks J Put up the wallboard FI 8 weeks K Install the flooring J 4 weeks L Do the interior painting J 5 M Install the exterior H 2 weeks fixtures N Install the interior KL 6 weeks fixtures (a) Draw the project network. (b) Under normal circumstances, can the project be completed within 40 weeks? Why? (c) What are the critical activities? (d) What is the critical path of the project? Consider the additional information below: Time Cost Activity Normal Crash Normal Crash A 2 weeks 1 week $180.000 $ 280,000 o FS F12 Susre