The correct answer is option 3: Nimbostratus.

To understand why, let`s first look at the other options. Cirrocumulus (option 1) and Cumulus (option 2) are types of clouds that do not typically produce continuous precipitation. They may appear as white, fluffy clouds in the sky, but they do not bring sustained rainfall.

Cumulonimbus (option 4) is a cloud that is known for its tall, towering structure and can produce heavy rain, thunderstorms, and even hail. However, while Cumulonimbus clouds can bring intense precipitation, it is not necessarily continuous. They often result in short bursts of heavy rain, followed by periods of lighter precipitation or no rain at all.

Nimbostratus (option 3) clouds, on the other hand, are characterized by their dark gray color and uniform, thick appearance. These clouds often cover the entire sky and bring continuous and steady precipitation. Nimbostratus clouds are typically associated with gloomy, overcast weather, and can bring drizzle, rain, or snow for an extended period of time.

Therefore, the correct answer is option 3: Nimbostratus, as it is the type of cloud that is characterized by continuous precipitation