Question 345Navigation General

The correct answer is B) white or green lights. Under the U.S. Aids to Navigation System used on the Western Rivers, aids to navigation lights on the right descending bank show white or green lights. This is in accordance with the lateral buoyage system, where green lights indicate the right side of the channel when traveling downstream. The other options are incorrect because white and red lights are used for different purposes in the navigation system, and green lights, not white lights only, are the proper color for the right descending bank.