Theres a Poll In my Sweater. LOCKED

Ok.. An impartial jury is needed to come to what I think is an obvious, but disputed discussion. Imagine yourself as eiter person A or B here, and decide for yourself who was right, and who was not.

Person A grew up in NYC. Knows the subways like the back of his or her hand. Person A takes person B and person C to NYC and jaunts around to enjoy the summer day. Persons B and C are both from NJ, and person B has a good amount of experience riding the train, although he or she would probably have to check a map to get somewhere. While making numerous transfers from subway line to subway line, one particular line gets crowded. While inside the train, it is very difficult to see exactly what stop you arecurrently at. The desired stoip is 42nd, Grand central station. The preceeding stop is 5th ave, the stop after the desired stop is in Queens. (5th ave.....42nd st....queens)Follow? Good. Heres the quandry. Person A has no view of the current station. He or she tells person B that they need to get off at 42nd St. "What stop is this
" says person A. Person B says "the sign says 5th ave". However, this is in actuality, just a sign denoting how to go back 1 stop to 5th ave. Unbeknownst to all, they are currently at their desired stop of 42nd st. As the train proceeds to Queens, Person A notices it is taking way too long to go a few blocks and assumes they have all missed their stop. They must now get off in Queens. Having no turn-around transfer at this station, they must all exit and re-enter across ther street, paying all over again and wasting a half hour. Grand scheme of things, no big deal. But whose fault is this? Person A or B? Or, if youre wacky, c? please explain.