The correct answer is A. warm air cools as it sinks and the wind blows outward.
In high-pressure systems, air is descending and as it sinks, it warms up. However, the prevailing idea in meteorology is that the cooling of air contributes to the stability of the system, and as the air descends and becomes denser, it leads to the outward flow of wind from the high-pressure center. Thus, the air is associated with descending cool air, and the wind moves outward from the high-pressure area.