[单选题]
A train is traveling yuzb8svwyq-n)d 6i25away from you at 120 km/h. The train blows its 400-Hz whip+dsg 46c;xsa ri;;w 7oc8d fvstle. Take the speed of sound to be 340 m/s. Wc; ;d op+ax 4sg8ifs;6wrd7vc hat frequency do you hear?
A. $444 \; Hz$
B. $439 \; Hz$
C. $364 \; Hz$
D. $361 \; Hz$