S1:MV Helper,this is Shanghai Coast Station.Can you proceed to distress position? S2:Shanghai Coast Station,this is Helper.Yes,I can proceed to distress position. Q:What can you infer from this conversation? A. MV Helper is in distress. B. A vessel is in distress. C. Shanghai Coast Station is the On-Scene Co-ordinator. D. MV Helper is the On-Scene Co-ordinator.