"Who, not by strength subdued me, but by wine."
In this context, "wine" means the idea of charm wit and conversation. Odysseus beat him by conversing with him and then eventually tricking him.
The answer is C. Why it’s C is because it’s describing two things which would need a comma between
Some people might say it is even good to mention incomplete projects, It's even better to have something already done. I would say that it would be fine to mention it, might even help.