<span>Class B would be the answer
I hope this helped you :) </span>
I think it is eustress :) I really hope this helps and you get an A+++++
So The Thing Here Is That The Liquids and Gases Are Going In Eatch Other Witch It Probably Reacts To Your Body Inside Or Outside In The Inside You May Not Know It But Outside It Gives You Designs.
Given the attitude of the grandfather portrayed in the problem, the most likely answer is
B) Go to the doctor regularly because he can monitor his health before problems get severe.
This would be because you are reminded, "prevention is the best medicine", and the answer B provides the precaution that is recommended.
Avian flu, Anthrax, SARS [Severe Acute Respiratory Syndrom]