109.
The answer is: C
Explanation
According to the Hindu Succession Act, 1956, a Hindu ceases to be a Hindu by conversion to another religion.
This means that if a Hindu changes his or her faith to Islam, Christianity, Judaism, or any other religion, he or she is no longer considered a Hindu by law. This also affects the inheritance rights of the convert and his or her descendants, who are disqualified from inheriting the property of any of their Hindu relatives, unless they are Hindus at the time of succession.
Therefore, the correct option is C: Conversion.