From which type of cloud can a tornado or waterspout develop?

Correct Answer: Option A — Cumulonimbus

Cumulonimbus clouds are dense, towering vertical clouds associated with thunderstorms and extreme atmospheric instability. They are the only cloud type capable of producing the intense updrafts and rotation necessary to generate tornadoes or waterspouts. Bowditch identifies these clouds as the primary indicators of severe convective weather and potential cyclonic activity.