Just read a textbook....or the Bible. All talks about Caesar.
The second one. If you add the counterclaim it allows that the people or person ( the Audience) that think differently from you know that you have already thought of their POV and why you think it’s wrong or give examples
A quatrain is a stanza of four lines with an alternating rhyme scheme. a couplet is a set of two lines that rhyme and are treated as a set. Shakespeare's sonnets all contain 3 quatrains and 1 couplet