Which one of the following is the correct chronological order of the conferment of the full statehood of the Indian Union ? (A) Sikkim – Arunachal Pradesh – Nagaland – Haryana (B) Nagaland – Haryana – Sikkim – Arunachal Pradesh (C) Sikkim – Haryana – Nagaland – Arunachal Pradesh (D) Nagaland – Arunachal Pradesh – Sikkim – Haryana