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: Forensic Medicine
Mental ability to make valid will is 
Select and explain. 
A. Vicarious liability, B. Curren's rule is basis for this, C. Testamentary capacity, D. McNaughten's rule
C: Testamentary capacity
Answer: C: Testamentary capacity 
Explanation: C i.e. Testamentary capacity Testamentary capacity capacity is the mental ability oof a person to make a valid willQ (Sec 31 IPC Holograph Will Will written by a testator in own hand writing Mc Naughten/ Durham's/ Curren's - Rule Rules for criminal responsibility of insaneQ Vicarious Responsibility A master is responsible for negligent acts of his servantsQ (not where servant is independent to take decisions) Euthansia Mercy killingQ Galton system Finger print study (Dactylography)Q Gustafson's/ Boyde - Method Age estimation by means of teethdeg. Beillion system/ Anthropometry Identification of an adult (> 21 years) on basis of body measurements, marks & descriptive data.Q