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.
-Activity-on-Arc (AOA) networks do not allow multiple arcs with common start and finish nodes. If this must be represented, how is an AOA network modified?

A) The network is redrawn into an Activity-on-Node network.
B) Connect the arcs to the node using an IFERROR() function.
C) Phantom (dummy) activity arcs are added.
D) Zero duration activity arcs are added.