Which of the following modifies the application of Muslim Law?

Each listed statute modifies the application of Muslim personal law: the Shariat Act, 1937 makes Muslim personal law the rule of decision in the matters it lists; the Dissolution of Muslim Marriages Act, 1939 gives a wife statutory grounds for judicial divorce; and the Muslim Women (Protection of Rights on Divorce) Act, 1986 governs the rights of divorced Muslim women. So "All of the given options are correct".

Current law: Leprosy was removed as a ground of divorce under the 1939 Act in 2019, and the Muslim Women (Protection of Rights on Marriage) Act, 2019 separately makes instantaneous and irrevocable talaq void and illegal; neither change repeals these three statutes.