Which statement accurately describes the characteristics of a low-pressure area?

A low-pressure area is characterized by rising air, which is why option B is the correct description. In a low-pressure system, the atmospheric pressure is lower than that surrounding it, and this pressure difference causes air to move inwards towards the center of the low. As the air converges, it is forced to ascend. This rising air can lead to cloud formation and precipitation, as the air cools and moisture condenses.

In contrast, other characteristics associated with low-pressure systems include instability in the atmosphere, often leading to stormy weather and cloudy conditions. Therefore, the idea that a low-pressure area promotes clear skies is inaccurate, and such conditions are typically associated with high-pressure systems where the air descends and leads to more stable, clear weather.

The descent of air is specifically associated with high-pressure areas, where the sinking air inhibits cloud formation, contrasting the dynamics found in low-pressure systems, which prominently feature rising air and increased potential for precipitation.