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.
-Refer to Exhibit 15.1. What array formula is placed in cell E5 to calculate the Earliest Start Time?

A) E2 + D2
B) MAX(IF(ISERR(FIND($A$5:$A$17,C5) ) ,0,$F$5:$F$17) )
C) H2 − D2
D) MIN(IF(ISNUMBER(FIND(A5,$C$2:$C$8) ) ,$G$2:$G$8) )