40.當兩艘動力船舶彼此以相反航向或幾乎相反航向對遇，而有碰撞危機時，所採取之避碰措施，下列何者為最佳行動？ (A)The big ship shall stop her engine (B)The small ship shall stop her engine (C) Each shall alter her course to starboard (D)Each shall alter her course to port