The correct answer is: A. twenty seats
The 12th Amendment Act of 1975 was an amendment to the Constitution of India. It was passed by the Parliament of India on 24 April 1975 and came into effect on 25 April 1975. The amendment was made to provide for the representation of the people of Pakistan-occupied Kashmir in the Parliament of India.
Section 48 of the Constitution of India, as amended by the 12th Amendment Act, provides for the representation of the people of Pakistan-occupied Kashmir in the Lok Sabha and the Rajya Sabha. Clause (a) of Section 48 states that the number of seats reserved for Pakistan-occupied Kashmir in the Lok Sabha shall be twenty.
The other options are incorrect because they do not correspond to the number of seats reserved for Pakistan-occupied Kashmir in the Lok Sabha as per Section 48 of the Constitution of India, as amended by the 12th Amendment Act.