Choice A rationale:

Age alone is not a risk factor for otitis media.

However, certain age groups, such as young children, are more susceptible to ear infections due to their developing immune systems and shorter Eustachian tubes.

Choice B rationale:

Season is not a direct risk factor for otitis media.

While certain respiratory infections might be more common in specific seasons, otitis media itself is not strongly influenced by seasonal changes.

Choice C rationale:

Allergies can contribute to ear infections, but they are not the most closely associated risk factor mentioned in the context.

Allergies can lead to inflammation and fluid buildup in the middle ear, making individuals more prone to infections.

However, in the given options, day care attendance is a more specific risk factor related to exposure to infectious agents.

Choice D rationale:

Day care attendance is closely associated with an increased exposure to infectious agents, including the bacteria that can cause otitis media.

Children in day care settings are in close contact with others, facilitating the spread of infections.