The correct answer is option 4, Part IX A. Part IX A of the Indian Constitution deals with the Municipalities. It was added through the 74th Amendment Act, 1992.

Option 1, Part VII, does not deal with Municipalities. Part VII of the Indian Constitution deals with the States in the Union of India.

Option 2, Part VIII, also does not deal with Municipalities. Part VIII of the Indian Constitution deals with the Union Territories.

Option 3, Part XI, does not specifically deal with Municipalities. Part XI of the Indian Constitution deals with the relation between the Union and the States.

Therefore, the correct answer is option 4, Part IX A, as it specifically deals with the Municipalities.