What inspired reflecting road lights to be invented?

A: Car door reflecting mirrors

B: The light a cat's eyes gave off on a fence

C: Sun light on steel posts on road sides

D: The sun light on the windshield

Explanation: In 1933, Englishman Percy Shaw was driving home when he saw a cat's eyes reflecting. He had been headed straight towards a fence with the cat on it, but on the other side was a drop of hundreds of feet.