Finding next closest match

I am trying to find a next match based on given formula and need help

In my table

A B C
0 0 0

=IF(D5=100,"-",IFERROR(INDEX('YTD - 09'!B$2:V$2,MATCH(D5,'YTD - 09'!B5:V5,0)),"-"))

As of now if the results are

A A A

However, I want the results to be

A B C