What atmospheric condition is most likely to occur during a cold front passage?

During a cold front passage, thunderstorms and rapid temperature changes are commonly observed. A cold front marks the boundary where a cold air mass moves in and displaces a warmer air mass, which is typically more moist and unstable. As the cold air moves in quickly, it forces the warmer air upward abruptly, leading to the formation of cumulus clouds and eventually, thunderstorms.

These storms can develop rapidly as the warm air rises and cools, condensing to form precipitation. The interaction between the different temperatures of the air masses can lead to significant temperature changes; as the cold front passes through, a noticeable drop in temperature can occur in a very short period. This phenomenon is characteristic of cold fronts, making it understandable why the occurrence of thunderstorms and rapid temperature changes is the correct answer in this scenario.