Final answer:
Fatema's colleague is mostly likely to ask 'Which zoonotic disease?' considering her research focus on the mutation and transmission of these diseases from animals to humans.
Step-by-step explanation:
Considering Fatema's research topic on tracking and understanding the mutation of zoonotic diseases that jump from animals to humans, her colleague is most likely to ask:
C. Which zoonotic disease?
Given the context, this question is the most relevant as it directly pertains to the specific zoonotic disease she is studying. It is essential for her colleague to know which disease she is working on in order to have a more informed discussion about the mechanisms of transmission, mutation, and the potential impact on human health.
Veterinarians and researchers like Fatema are crucial in broadening our understanding of medical science through the study of diseases such as avian flu virus and brucellosis. Their work helps in preventing future outbreaks and developing better strategies to combat the spread of infections from animals to humans.