Question 417Navigation General

The correct answer is C) 13.7 miles. The reasoning is based on the formula for the geographic range of a light, which is: Geographic Range (in nautical miles) = 2.08 x (√height of eye (in feet) + √height of light (in feet)). Using the given information - a nominal range of 20 miles, a light height of 52 feet, a visibility of 12.0 miles, and a height of eye of 20 feet - plugging these values into the formula yields a geographic range of approximately 13.7 nautical miles, which is the correct answer. The other options are incorrect because they do not accurately reflect the calculated geographic range based on the provided information.