Which fleas are listed as having no diseases listed in the material?

• A. Rodent flea
• B. Human flea
• C. Cat flea, dog flea
• D. Nest flea

Answer: (C)

The question tests how the material presents disease associations for different flea species. In this resource, some fleas are listed with specific diseases, while others show no diseases listed. The two that have no diseases listed are the cat flea and the dog flea. This means, within the material you’re using, there are no disease entries attributed to those fleas, so they’re identified as having no diseases listed. The other flea types mentioned—rodent fleas, human fleas, and nest fleas—do have diseases listed in the material, which is why they’re not the correct choice. Keep in mind that absence of listed diseases in this material doesn’t necessarily reflect real-world risk, but it explains why these fleas are designated as “no diseases listed” in the source.