The correct answer is A: State of Jammu & Kashmir.

Section 1 of the Protection of Women from Domestic Violence Act, 2005 states:

1. This Act may be called the Protection of Women from Domestic Violence Act, 2005.
2. It extends to the whole of India.
3. It shall come into force on such date as the Central Government may, by notification in the Official Gazette, appoint.

Note: The words 'except the State of Jammu and Kashmir' were omitted by Act 34 of 2019, s. 95 and the Fifth Schedule (w.e.f. 31-10-2019). Therefore, the Act now extends to the entire country including Jammu & Kashmir. Option A reflects the position prior to this amendment, which is what the question tests.