When the points are set for loop line, the point indicator shows no target by day and ________ Light by night. A. Red B. Green C. Yellow D. White

The correct answer is: White.

When the points are set for loop line, the point indicator shows no target by day and white light by night. This is because the white light is less likely to be obscured by fog or other conditions that can make it difficult to see the target.

The other options are incorrect because they are not the color of light that is typically used for point indicators. Red light is often used for stoplights, green light is often used for traffic lights, and yellow light is often used for warning lights.