very urgent ASAP, direct thumps up;)

A project's activity network has been crashed to the point where all activities are critical, so additional crashing: A) is unnecessary. B) is impossible. C) is prohibitively expensive. D) may require crashing multiple tasks simultaneously. E) can be done, but all critical tasks must be reduced in duration Gantt charts give a timeline for each of a project's activities, and they adequately illustrate the interrelationships between the activities and the resources: a. TRUE b. FALSE The main difference between PERT and CPM is that CPM assumes activity durations can vary: a. TRUE b. FALSE 5. Slack is the amount of maximum time an activity can be crashed: a. TRUE b. FALSE