A virus was introduced to control a rabbit population. At first, the rabbits died in large numbers, but the death rate decreased over time. Which of the following explains the decrease in the rabbit death rate? Group of answer choices

The rabbits that were originally infected with the virus have been dead for many years

Young rabbits learned to avoid being infected with the virus

The lifespan of this virus is too short to affect the rabbits over a long period of time

Natural selection favored rabbits that are resistant to the virus