It would be D because it basically means what you have to do when a tornado strikes.
Answer:
In this page you can discover 41 synonyms, antonyms, idiomatic expressions, and related words for clue, like: evidence, sign, tip-off, hide, characteristic, clew, trace, intimation, proof, giveaway and telltale.
Explanation:
Answer:
About 500 CE, much of western Europe was left without a strong centralized government due to the breakdown of the Roman Empire. With little organized resistance, Germanic invaders raided western European cities and monasteries.