Which statement about advection fog is true?

Advection fog forms when warm, moist air moves over a cooler surface, causing the air to cool and become saturated, leading to fog development. This process can occur at any time of day, both during the day and at night, as long as the right conditions—moisture and cooler surfaces—are present. Because advection fog is influenced by the movement of air masses, it can appear relatively quickly and may develop suddenly, making the statement about its ability to appear at any time accurate.

The other statements do not accurately describe advection fog. For instance, it is not limited to brief and localized occurrences, like radiation fog, which typically dissipates quickly once the sun rises. Likewise, advection fog can occur in any season, not just winter, depending on temperature contrasts. Additionally, while radiation fog is generally more transient, advection fog can persist longer in comparison due to continuous moisture supply from the moving air mass.