The first sentence, "In this perspective, lines converge to a vanishing point to produce an illusion of depth."
Tommy Flanagan. I discovered a quizlet with this question if you look it up on Google.
Answer:
A cross-connection is a point in plumbing where it is possible for a non potable (not drinkable/safe to drink) to come in contact with a potable (safe to drink) water supply. so I think the answer would be A