C.
The reason why is because it's talking about how much would it takes to make charcoal, which is a lot to yield so little charcoal. So, it's negative.
You forgot the period. And The capital "c". I don't know what type of question this is so I just helped with the grammar!
General Zaroff avoids the trap Rainsford sets.
He got it for creating new poetic expressions within the great American song tradition
You already got the answers. I'm confused on what you want me to do.