The correct option is C Daman & Diu
Manipur was elevated from the status of Union Territories to State by North-Eastern Areas (Reorganization) Act 1971. Nagaland state was carved out of the state of Assam by the State of Nagaland Act, 1962. Sikkim became 22nd state of India on 15th May 1975. Daman and Diu is the Union Territory on western India comprising of two widely separated district. Hence, option B is correct answer.