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
Which of the following is not a legal ground for divorce? 
Select and explain. 
A. Adultery, B. Forced conversion to another religion, C. Either pay was mentally unsound from the time of marriage, D. Either spouse not being heard from for 7 years or more
C: Either pay was mentally unsound from the time of marriage
Answer: C: Either pay was mentally unsound from the time of marriage 
Explanation: If either pay is mentally unsound from the time of marriage the marriage is void and hence no divorce is possible. Divorce is only applicable for the dissolution of a previously valid marriage. Grounds for divorce also includes: Cruelty, deseion, mental unsoundness developing after marriage, communicable venereal diseases, renunciation, mutual consent and husband found guilty of rape, sodomy or bestiality. Ref: Textbook of Forensic Medicine and Toxicology By V.V Pillay, 15th Edition, Page 317