HELP Which sentence provides an example of formal language?

People thought Marcus Aurelius wasn’t good at being emperor.

Marcus Aurelius was a really smart guy who read lots of books.

Caesar Augustus took money from people so he could build stuff.

Caesar Augustus collected taxes to fund his public works projects.

yes

explanation:

the fighting words doctrine, in united states constitutional law, is a limitation to freedom of speech as protected by the first amendment to the united states constitution. in 1942, the u.s. supreme court established the doctrine by a 9–0 decision in chaplinsky v. new hampshire.

is this question from a book? ?