E. Which direction is the train B heading?
Come on guys. I agree GMAT tries to trick u but not at this level. I will be stunned if E is the OA.
That's what I thought. But this question comes off of the GMAT Club Challengessss (eerie music suddely playes in the background, lightning suddenly strikes outside your window). Whooaaaaahhahahahah...
The answer is E.
To be real, are we going to see a question of this level of trickiness on the real GMAT?