Two Lights Are 1000 Ns Apart Along a Stretch of Railway

Multiple Choice

Two lights are 1000 ns apart along a stretch of railway track. In the ground frame, the west light flashes $600 \mathrm{~ns}$ before the east light flashes. Could these flashes be simultaneous in the frame of a train moving along the track at a certain speed (that is less than the speed of light) ?

A) Yes, if the train is moving east at the correct speed.
B) Yes, if the train is moving west at the correct speed.
C) Yes, if the train observer happens to be at the right distances from the lights when receiving their flashes.
D) No, the flashes cannot be simultaneous in any frame.