Rain cloud associated with long continuous rainfall​

Nimbostratus clouds bring continuous precipitation that can last for many hours. These low-level clouds are full of moisture. Cumulonimbus clouds are also called thunderheads. Thunderheads produce rain, thunder, and lightning.

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A nimbostratus cloud is a multi-level, grey, often dark, amorphous, nearly uniform cloud that usually produces continuous rain, snow, or sleet but no lightning or thunder.

the answer is c i just put d and i got it wrong so yeah its d