Category: Production Technology

Pick up the correct statement from the following?

A. critical path method is an improvement upon bar chart method
B. critical path method provides a realistic approach to the daily problems
C. critical path method avoids delays which are very common in bar chart
D. critical path method was invented by Morgan R. Walker of Dupot and James E. Kelley of Remington U.S.A in 1957
E. all of the above