What is MOST likely the reason why the author included the information about how mice responded to different types of dust?

A .To prove that the scientific experiment was done properly

B. To show that the microbes in the Hutterite dust are the same as the microbes in the Amish dust.
C. To argue for more farm animals in daily life to protect against asthma.
D. To give an example of how certain microbes can protect against asthma.