According to the text, judge the item. Without changes in

According to the text, judge the item. 

Without changes in its meaning, the segment “The purpose of the demonstration was to show how communication technology could be used to assist the work of an audiologist in new and exciting ways” (lines from 20 to 22) can be correctly rewritten as To show how communication technology must be used to help the job of an audiologist in new and exciting ways is the purpose of the demonstration.