What can be salvaged from a diseased colony?

The correct choice highlights that hive bodies can often be salvaged from a diseased colony. Hive bodies, or the main structural components of beehives where bees live and store honey, may be cleanable and reusable if properly sanitized after disinfection procedures to eliminate pathogens.

In contrast, while there may be circumstances where honey or bees can also be salvaged, this is not universally true. Honey might become contaminated from the disease and, as such, may need to be discarded to prevent the potential spread of pathogens to healthy colonies. Similarly, bees may carry diseases and should be evaluated carefully before being transferred to prevent transmission. Therefore, focusing specifically on hive bodies emphasizes the importance of maintaining equipment and ensuring safe practices in beekeeping during instances of disease.