BOTH INTERNATIONAL & INLAND An all-round flashing yellow light may be exhibited by a(n) __________.

Correct Answer: Option A — air cushion vessel

Under Inland Navigation Rules, for the condition where 'An all-round flashing yellow light may be exhibited by a(n)', the correct requirement is: 'air cushion vessel in the nondisplacement mode'. This standard ensures clear navigational intent and collision avoidance.