Question

If you're lying on the beach and small, white cumulus clouds are headed your way, what should you do? Continue lying on the beach; these clouds produce fair weather. Pack up everything and leave; these clouds produce storms! Put up your umbrella; these clouds produce only light precipitation.

Answer 1

Cumulus clouds are a bunch of low-lying clouds and they look like cauliflower. They are fair weather clouds. And therefore, on seeing them, I would continue lying on the beach. So, your answer is A. Cumulus clouds are puffy and are not sign of bad weather unless they are higher in the atmosphere. 

Answer 2

In simple terms...

Continue lying on the beach; these clouds produce fair weather.