1. Construct an activity network for the following series of steps to be carried out for constructing a house. A. Excavate B. Foundation C. Frame D. Electrical E. Roof F. Masonry G. Interior H. Exterior I. Landscape 5 days 2 days 12 days 9 days 5 days 8 days 10 days 7 days 5 days Some of the process steps (nodes A, B, and C) run in series, while other process steps (nodes D, E, and F) run in parallel. Notice that Step B cannot happen until step A has been completed. Likewise, step C cannot happen until step B has completed. Step, D,E and F follow step C. Step H cannot happen until steps D, E, and F have completed. G and H can go in parallel followed by step I. Determine the critical path. Note: The critical path is a line that goes through all of the nodes that have the longest expected completion times.

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