What atmospheric condition typically leads to poor visibility?

The option indicating stable atmospheric conditions is considered the correct answer because stable atmospheres can lead to the development of fog, haze, and low clouds, all of which significantly reduce visibility. In stable conditions, air tends to remain relatively still, preventing the mixing of air layers and allowing pollutants or moisture to accumulate near the ground. This accumulation can manifest as fog or mist, reducing visibility for drivers and pilots alike.

On the other hand, clear, sunny days typically feature good visibility, as there is little to no moisture in the air. High altitude winds generally do not influence visibility at ground level directly, and while strong thunderstorms can result in temporary poor visibility due to heavy rain, lightning, and turbulence, they are not indicative of the broader category of atmospheric conditions associated with consistent low visibility.