【名词&注释】
救生艇(boat)、出事地点(accident location)、主管机关(competent authorities)、宣传画(picture poster)、《海上交通安全法》、呼救信号(distress signal)
[单选题]If it becomes necessary for a stand-on vessel to take action to avoid collision,she shall NOT,if possible,().
A. Decrease speed
B. Increase speed
C. Turn to port for a vessel on her own port side
D. Turn to starboard for a vessel on her own port side