INLAND ONLY You are overtaking a power-driven vessel in a narrow channel and wish to leave her on your starboard side. You may __________.

Correct Answer: Option A — attempt to contact her on the radiotelephone to arrange for the passage

Under Inland Navigation Rules, for the condition where 'You are overtaking a power-driven vessel in a narrow channel and wish to leave her on your starboard side. You may', the correct requirement is: 'attempt to contact her on the radiotelephone to arrange for the passage'. This standard ensures clear navigational intent and collision avoidance.