BOTH INTERNATIONAL & INLAND For a stand-on vessel to take action to avoid collision she shall, if possible, NOT __________.

Correct Answer: Option C — turn to port for a vessel on her port side

Rule 17(c) prohibits the stand-on vessel from turning to port for a vessel on its port side when taking action to avoid collision, as this maneuver creates high-risk crossing scenarios and violates standard collision avoidance logic.