Question

11) IF THERE IS A RAILROAD CROSSING AHEAD AND A RED FLASHING SIGNAL WARNS YOU OF AN APPROACHING TRAIN, YOU MUST: A. Stop and don’t proceed until the red lights stop flashing B. Slow down before crossing C. Stop only if you see a train coming

Answer 1

I believe the answer is A
 A flashing red light means come to a full stop. ... Yield the right-of-way to pedestrians in the intersection.

Answer 2

A. stop and don't proceed until the red lights stop flashing. the lights mean the train is coming, so you must stop.