If you can please tell details of the story it would help out a lot into finding the answer for you!
A is the answer. B has a 'plural verb' and a singular subject, as does C. D has a plural subject and 'singular verb'
I can't think of four things but I was always taught to always cite everything. Even if you think something is an original idea or phrase, look it up and make sure and if someone else has said that just put it in your work cited because that could be considered plagiarism. Also always cite direct quotes
Answer:
where is the event? I mean where is the Article from which are we suppose to answer