Here's a problem to solve: An infectious disease causes an increase in the body temperature and a decrease in the blood glucose levels of a deer. What is most likely an effect of this disease?

Among the 4 following options, which is the correct answer?

- A: a disruption in the homeostasis of the deer
 
- B: a change in the genetic makeup of the deer
 
- C: an increase in the energy level of the deer
 
- D: an increase in the reproductive rate of the deer
 