I think C is the most accurate choose to define elaboration
<span>Negative feedback is most like adding wood to a burning fire to increase the heat.</span>
The answer is C. "the man's behavour led me to guess...upset in someone."
Sentences A and B describe the actions and manners, showing the man's behaviour and anxiety: casting quick glances, his foot beating on the hot pavement etc. appearing he could even explode with anger. At some point (C), <em>he changed and just got calm, wainting silently, leading the speaker to wonder if the cause of all this could be the bus' delay.</em>
1. juliet
2.juliet
3.nurse
4.juliet
5.nurse
6.nurse
hope i helped - beanz
