Shakespeare uses the word vile rather than sharp or bloody to describe the assassin's daggers. This helps the audience understand a. the power of the use of flattery and kindness to confuse the play's characters

b. that Antony viewed the mean who killed Caesar as vicious and despicable

c. the frailty of Caesar before he was attacked

d. the weakness of the weapons used to kill Caesar

(its B, couldnt find the answer to this question anywhere so i just guessed and got it right)