[单选题]
You are moving at 120 km/h toward a stationbv 7knla*gr30 1mvuw lka e-c0e;9j7 fary;k1fh4p 5s6naj9cts s train. The train blows its 400-Hz wh1p6sn shj;5kcta9s4 fistle. Take the speed of sound to be 340 m/s. What frequency do you hear?
A. $444 \; Hz$
B. $439 \; Hz$
C. $364 \; Hz$
D. $361 \; Hz$