2. I would say the correct answer is A. Dialogue is used. Dialogue is a form that is used in both literary (poetry and prose) and dramatic works. Of course, dramas are based on it, but it is quite a common feature of literary works too. As for the B and C options, they are exclusive to dramatic works.
3. The correct answer, in my opinion, is C. fourth-person limited. Something like that doesn't exist. The first-person point of view is when the speaker refers to themselves as "I", narrating the story from their own perspective. The third-person point of view is when the speaker is invisible, telling us the story from a seemingly neutral perspective.
4. In my opinion, the correct answer is C. because Rosaline is supposed to be there. At the tragedy's beginning, Romeo is madly in love with Rosaline - or he thinks so, at least. He has not yet seen Juliet, so he pursues this naive and relatively innocent, romantic love.