This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Programmed cell death is known as: 
Select and explain. 
A. Cytolysis, B. Apoptosis, C. Necrosis, D. Proptosis
B: Apoptosis
Answer: B: Apoptosis 
Explanation: . Apoptosis