Answer:
C.15 feet, 50 feet
Step-by-step explanation:
In the state of Virginia all vehicles must stop within 50 feet but not less than 15 feet from the closest rail on a railroad crossing if either indicated to do so or if an approaching train is visible.
Exception of cities or towns, the person driving any motor vehicle conveying passengers for hire, or of any vehicle conveying explosive substances or flammable liquids, must stop within 50 feet but not less than 15 feet from the closest rail of a railroad.