I'd go with B.
It'd make sense to want to stand out if the staff read a lot of essays per day. You don't want yours to be included with the uninteresting "same-old" pile.
I would say A or C would fit the role a topic sentence should play. Simply because B doesn't make sense unless given context with A. D doesn't make sense unless given context from A. So because of the lack of context between B and D if put in the first sentence, I would narrow it down to A or C. I'm assuming there is a was in between "Barbara" and "tired" within the first sentence. Hope that helps.
Answer:
Raise your hand to speak, and wait your turn.
Explanation:
As a student of being online it was hard to participate because no one usually followed a simple rule we would all use in school. Some argued back and forth with each other. I would say let the teacher decide who they would like to pick on and wait on your turn and remain muted.
Answer:
i think it might be C, but im probaly wrong
Explanation:
The smell of vanilla steaming from the waffle iron, chrome waffle iron;