Two Critical Path Activities Are Candidates for Crashing on a CPM

Multiple Choice

Two critical path activities are candidates for crashing on a CPM network.Activity details are in the table below.To cut one day from the project's duration,activity ________ should be crashed first,adding ________ to project cost.

A) One;$400
B) One;$6,800
C) Two;$1,000
D) Two;$5,000
E) One or Two should be crashed;$1,400