Final answer:
Stratus clouds are best described as stretched out and low, covering the sky like a blanket, and can bring drizzle or light rain.
Step-by-step explanation:
The stratus clouds best describe the option stretched out and low. Stratus clouds are characterized by their uniform, grayish appearance and tend to cover the sky like a blanket. Unlike cumulus clouds, which are puffy and develop vertically indicating fair weather, or the wispy cirrus clouds found at high altitudes, stratus clouds form in flat layers and are typically associated with overcast days and can bring drizzle or light rain. They do not possess the fluffy appearance and vertical development typically associated with cumulonimbus clouds.