Final answer:
Advection fog is most likely to occur in coastal areas where warm air moves over a colder surface, such as an ocean or a cooler landmass.
Step-by-step explanation:
Advection fog is most likely to occur in coastal areas where warm air moves over a colder surface, such as an ocean or a cooler landmass. This type of fog is formed when warm, moist air moves horizontally over the cooler surface and is cooled to its dew point, causing water vapor to condense into fog. The presence of advection fog is influenced by factors such as temperature differences, wind direction, and proximity to bodies of water.