Ranges are indicated by the symbol for lights and a _________________ ______________________ indicating the direction.

The correct answer is the symbol that represents a bright arrow, which is commonly used to indicate the direction of a range in navigation. In maritime contexts, ranges are visual aids guiding mariners along a desired path or channel. The bright arrow symbol helps to clearly convey the line of sight or the best course to follow, making it easier for boat crews to navigate safely. This directional information is crucial in ensuring that vessels stay within safe channels and avoid hazards.

The other options do not accurately convey the typical representation of direction in navigation. Dotted lines and solid lines do not serve the same clear purpose as an arrow, as they do not provide a direct indication of direction. A reference point could be helpful in navigation, but it does not specifically indicate the directional flow of a range like a bright arrow does. Therefore, the bright arrow is the correct choice for indicating the direction of ranges.