A because it has a question mark at the end of the sentence. Interrogative sentences will always end in a question mark!
In the first trial there were quite a few people in the elevator and when I got in and turned the opposite direction nobody turned around or changed directions. The second time there was only was only two people in the elevator and when new people got to get in they turned the way I was facing. The third trial there was five people in the elevator and when I faced the opposite direction they turned the direction I was facing. The fourth and fifth trials there was not many people in the elevator and nobody turned my direction but this may have been because the people in the elevator were a family and stuck with what each other did over what a stranger did. The sixth trial I was the only one in the elevator and when new people got in they changed the direction I was facing. The seventh trial nobody turned the direction I was facing until one person did and then the three other people in the elevator also did this. The eighth and final trial there was seven people in the elevator and nobody turned.
I think that the people may have turned around because they thought that the elevator would open that way because some of them seemed very surprised when they had to turn back around to get out of the elevator. Another reason this may have the people may have turned around when I did is because humans desire to follow the pack and one part of the pack did something different they assume it is for a reason.
Sentence (A) is written correctly. When a subject consist of Neither…..nor…, a singular verb is needed if the last noun is singular.
In sentences (B), the correct verb is “was” and in sentence (C) the correct verb should be “is”.
