The following represent activities in Marc Massoud's Construction Company project: ACTIVITY A B D IMMEDIATE TIME PREDECESSOR(S) (WEEKS) 3 1 A 3 B 6 ACTIVITY E F G H IMMEDIATE PREDECESSOR(S) B CE D F,G TIME (WEEKS) 2 3 8 4 a) Choose the correct network to represent this situation. OC , OA Start Start Start Start b) Which activities are on the critical path? The critical path is c) What is the length of the critical path? The length of the critical path is weeks. (Enter your response as a whole number.)