Answer:to combine ideas from multiple sources
Explanation: synthesize basically means combine, so you need to combine ideas from different places and put them together as one.
They feel as though the mans presence is ominous in a way, saying he's sullen would suggest he's viewed poorly by them
I believe that the persuasive appeal of (C) Reason is being used here. It implies that since Brutus is an honorable, then by that all logic, all men must be honorable.
