Which of these is NOT a technique for reducing the critical path and compressing a project's schedule? a. Overlap sequential activities using finish-to-finish (FF), start-to-start (SS), or start-to-finish (SF) relationships. b. Perform a forward pass and a backward pass through the network. c. Shorten duration of activities that cost the least to speed up by loading more resources. d. Schedule activities that are normally in sequence at the same time (execute simultaneously)