This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of health and disease, Subject name: Social & Preventive Medicine
Founder effect describes the distribution of diseases on the basis of 
Select and explain. 
A. Occupation, B. Environment, C. Genetics, D. None
C: Genetics
Answer: C: Genetics 
Explanation: In population genetics, the founder effect is the loss of genetic variation, and/or occurrence of genetic disorders when a new population is established by a very small number of individuals from a larger population. Ref: 25th edition, Park's Textbook of Preventive and Social Medicine, Page no. 888