B. You can be used as both. Here is an example. "You said you wanted this bear, so I got it for you." You is used as both a subject and object pronoun.
Depends on what you are talking about for example if you are talking about a nonfiction or an opinion piece then the author might use transition words to move smoothly on to the next paragraph or to start a new topic.
If it's a fiction then it's most likely using descriptive language, p.o.v , dialogue and character development I. The story
The imagery that Poe uses to help you hear, see, smell, and feel the sensations of being buried alive is like I could feel myself gasping for air as he described this scene to me. I could see myself in the middle of tons of dirt, smelling the dust. I could hear the dirt getting piled on top of me.
Albert Einstein once said that gravitation " Cannot he held responsible for people falling in love."