This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: miscellaneous, Subject name: Biochemistry
Chalones are of cell division 
Select and explain. 
A. Regulators, B. Promoters, C. Inhibitors, D. Initiators
C: Inhibitors
Answer: C: Inhibitors 
Explanation: Chalones are endogenous cell division inhibitorThey inhibit the division by acting on a number of events in cells cycleDue to inhibitory propey on cell division, it has a therapeutic action in cases like cancer.