Question

how are brutus and cassius linked? *
they are both leaders in the conspiracy
they are brothers
they served together in war
they become enemies because of their disagreements
what do the lines and arrows most likely mean in the character chart? *
they show which characters die by the end of the play
they show which characters are related by blood or marriage
they show which characters act upon other characters
they are meaningless

Explanation:

In Shakespeare's Julius Caesar, Brutus and Cassius are key figures in the conspiracy against Caesar. They are not brothers, nor is their primary link war service. While they do have disagreements, their fundamental connection is as leaders in the conspiracy. Regarding the character - chart lines/arrows, in literary analysis, such visual elements typically show relationships of action (who influences or acts on whom), not just death, blood - marriage ties, or being meaningless.

Answer:

For the first question: They are both leaders in the conspiracy.
For the second question: They show which characters act upon other characters.