Answer:
A. to flatter Caesar and make sure he will go to the Capitol
(Photo for proof at the bottom.)
Step-by-step explanation:
Decius is one of the conspirators who plans to kill Caesar. In order to do so, Caesar must be at the Capitol, where the rest of the conspirators will be. Caesar says he will not go to the Capitol, because of Calpurnia's dream that signifies a bad omen. Her dream was that she saw Caesar's statue run with blood like a fountain, while many smiling Romans bathed their hands in the blood. But Decius flatters Caesar to go to the Capitol anyway by making the dream seem positive. The background information says it was customary to dip handkerchiefs into the blood of great people. Decius uses this to flatter Caesar to go to the Capitol.
Here's a photo of Edge incase you're doubtful.
Please click the heart if this helped.