The correct answer is: B. Stratocumulus
Stratocumulus clouds are low, puffy clouds that are often arranged in rows or patches. They are typically white or gray in color and can be quite thick. Stratocumulus clouds are formed when warm, moist air rises and cools, causing the water vapor to condense into clouds. They are most common in the morning and evening, when the temperature difference between the ground and the air is greatest.
Cirrostratus clouds are thin, sheet-like clouds that are often white or gray in color. They can be quite extensive and can cover the entire sky. Cirrostratus clouds are formed when ice crystals in the upper atmosphere condense into clouds. They are most common in the winter, when the temperature in the upper atmosphere is cold enough for ice crystals to form.
Altocumulus clouds are mid-level clouds that are often white or gray in color. They can be quite thick and can block out the sun. Altocumulus clouds are formed when warm, moist air rises and cools, causing the water vapor to condense into clouds. They are most common in the spring and summer, when the temperature difference between the ground and the air is greatest.
Cirrus clouds are thin, wispy clouds that are often white in color. They are typically very high in the atmosphere and can be seen for long distances. Cirrus clouds are formed when ice crystals in the upper atmosphere condense into clouds. They are most common in the winter, when the temperature in the upper atmosphere is cold enough for ice crystals to form.
In middle latitudes, stratocumulus clouds have the lowest base. This is because stratocumulus clouds are formed when warm, moist air rises and cools, causing the water vapor to condense into clouds. The lower the temperature of the air, the more water vapor it can hold. In middle latitudes, the air is typically cooler at higher altitudes, so stratocumulus clouds form at lower altitudes than other types of clouds.