Consider the following table of activities A through E in which A is the start node and E is the stop node. The project is time$-$constrained and the project manager wishes to minimize the number of resources required at any given time. Each activity requires a single resource.

Project Activities

Activity

Duration $($days$)$

Predecessor

A

$5$

$--$

B

$5$

A

C

$10$

A

D

$4$

A

E

$5$

B$,$ C$,$ D

On a piece of scratch paper, draw the early$-$start Gantt Chart associated with this table and determine which activity should be delayed?