I'm pretty sure its A but I could be wrong
Answer:
decide the purpose for writing the essay. present an opinion on a topic.
Explanation:
The organizing principles that are used in this paragraph are comparison and contrast; cause and effect. In the beginning, the author is giving the similarities and the differences between petroleum and coal, and moves on to talk about cause and effect in the end.
Englishhhhhhhhhhhhhhhhhhhhhhhhhh