If it were to be determined that similar phenomena occur in warm-blooded animals, which of the following, assuming each is possible, is likely to be the most effective treatment for warm-blooded animals with bacterial infections? A. Administering a medication that lowers the animals' body temperature B. Injecting the animals with an iron solution C. Administering a medication that makes serum iron unavailable to bacteria D. Providing the animals with reduced-iron diets E. Keeping the animals in an environment with temperatures higher than 37℃