Reference::library
you find words in a dictionary, you find references in a library
The answer is a. Wary means to be cautious and hesitant means to stop and be cautious
Casca - A public figure opposed to Caesar's rise to power. Casca relates to Cassius and Brutus how Antony offered the crown to Caesar three times and how each time Caesar declined it. He believes, however, that Caesar is the consummate actor, lulling the populace into believing that he has no personal ambition.