Exhibit 15.1 The Following Questions Employ the AON Network and Partial Spreadsheet

Multiple Choice

Exhibit 15.1
The following questions employ the AON network and partial spreadsheet below.
-Slack represents the amount of time by which an activity can be delayed without delaying the entire project, assuming that

A) all successor activities start at their earliest start times.
B) all predecessor activities start at their earliest start times.
C) immediate predecessor activities start at their earliest start times.
D) all predecessor activities start at their latest start times.