A Train Traveling Very Fast (V = 0

A train traveling very fast (v = 0.6c) has an engineer (E) at the front, a guard (G) at the rear and a passenger (S') exactly half way between them.Both E and G are equipped with yellow signaling lamps.The train passes a station, closely observed by the station master (S) .Both E and G use their lamps to send signals.According to both S and S' these signals arrive simultaneously at the instant S' is passing S.According to S, the signal from E will look ______ and that from G will look _____:

A) red, blue
B) yellow, yellow
C) blue, red
D) blue, blue
E) red, red