Where do brown wheat mite eggs typically reside?

Brown wheat mite eggs typically reside on soil or plants. This preference for the surfaces of soil and vegetation allows the eggs to be close to the food sources that the young mites will need after they hatch. As these mites are associated with wheat and other crops, the presence of eggs on these surfaces enables the population to thrive in or near agricultural environments, making them more effective in infesting and affecting crops.

The other options suggest locations that do not align with the biological habits of the brown wheat mite. For instance, while some pests may inhabit structures or rely on certain environmental conditions, brown wheat mites specifically favor the above-ground portions of the host plants and the soil surface. These factors make option B the most accurate and relevant to the behavior and lifecycle of brown wheat mites.