Which of the following statements regarding CPM is true?

A) The critical path is the shortest of all paths through the network.
B) The critical path is that set of activities that has positive slack.
C) Some networks have no critical path.
D) All activities on the critical path have their LS equal to the maximum EF of all immediate predecessors.
E) The critical path is that set of activities that has negative slack.

Critical Path

A critical path is the sequence of project activities which add up to the longest overall duration, determining the shortest time possible to complete the project.

Positive Slack

The extra time available to complete a task beyond the scheduled time, which can help in managing delays in project management.

Immediate Predecessors

Tasks that must be completed directly before a subsequent task can begin in project management or process planning.