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: Social & Preventive Medicine
Right to life ? 
Select and explain. 
A. Is a moral principle, B. Signifies that every human being has the right to live, C. Advocates against the unjust killing of one human being by another, D. All the above
D: All the above
Answer: D: All the above 
Explanation: Ans. is 'd' i.e., All of the above Right to life:The right to life is a moral principle based on the belief that a human being has the right to live and, in paicular, should not to be unjustly killed by another human being. The concept of a right to life is central to debates on the issues of euthanasia, capital punishment, aboion, self-defense and the morality of war.