Answer:
B. Antony and Octavius must join forces to win in battle against the combined forces of Brutus and Cassius.
(Photo for proof below)
Here's the missing passage to this question:
[ANTONY.] And now, Octavius,
Listen great things—Brutus and Cassius
Are levying powers. We must straight make head.
Therefore let our alliance be combined,
Our best friends made, our means stretched,
And let us presently go sit in council,
How covert matters may be best disclosed,
And open perils surest answerèd.
OCTAVIUS. Let us do so: for we are at the stake,
And bayed about with many enemies;
And some that smile have in their hearts, I fear,
Millions of mischiefs.
Explanation:
When Antony says "Brutus and Cassius are levying powers," this tells us that they have joined forces. He also says "Therefore let our alliance be combined," which means that he wants Octavius and himself to combine forces against Brutus and Cassius. This is a good example of character vs character because in this scene, characters are going against other characters. A is wrong because it is an example of character vs nature, as the description of weather says so. C is wrong because Octavius actually is willing to rule with Antony against Brutus and Cassius. Honestly, I don't know what D means, but it doesn't sound right. Society is not mentioned in this passage. It is also wrong on Edge.
Here's a photo confirming the right answer on Edge incase you're doubtful of my answer.
Please click the heart if this helped.