I would definitely go with C. a topic sentence. While A. is never a bad idea, essay paragraphs tend to get marked as off topic if there is not a topic sentence. Hope this is helpful!
Answer:
It can be for some people but for me no.
I am a dense thinker; I am constantly being bombarded by feedback from the world around me, and thus am unable to process bulks of information at a time. The small bit of feedback I do maintain, Is usually useless, and therefor is discarded later on. I am in my best environment when I flippantly flop on my bed and slip into a world of my own, comprised of nonsensical 'philosophy'. I truly enjoy this because I have no pressure to acknowledge the chaotic world around me, or to intelligently accomplish anything. Of course, this also means that the majority of my time is spent dozing off and/or being a sheep: unable to think for myself and following people who decide what is right for me. Sometimes, when I put real effort into my activities, I accomplish more than I thought I could. However, effort is hard, so I try to avoid it.