To summarized each piece of a point you need to gather your main points and then writhing a short paragraph of about what the main points are talking about but in a way where you can understand with out having to read it all
A sacrifice, whether its an animal or something valuable.
I would choose C. That would be the best answer for you.
Structure is probably the same with both eras in poetry. It still has that lyrical or rhyming flow and it follows short stanzas with usually 4 sentences each. The only difference is the current societal situations that each era faced. Both have the same structure but the difference is in their content based on the observations of writers found in specific eras.