This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cellular Responses and Adaptations to Stress, Subject name: Pathology
In individuals who donate one lobe of the liver for transplantation, the remaining organ soon grows back to its original size. This is an example of which adaptive mechanism: 
Select and explain. 
A. Hypertrophy, B. Atrophy, C. Hyperplasia, D. Metaplasia
C: Hyperplasia
Answer: C: Hyperplasia 
Explanation: Ans. (c) HyperplasiaRef: Robbin's pathology 9th ed. 136* In individuals who donate one lobe of the liver for transplantation, the remaining cells proliferate so that the organ soon grows back to its original size. This is a classic example of compensatory hyperplasia.