In 1987, three new States of Mizoram, Arunachal Pradesh and Goa came into being as A. The 24rd , 25th, and 26th states of the Indian Union B. The !7th, 18th and 19th states of the Indian Union C. The 23rd , 24th, and 25th states of the Indian Union D. The 25rd , 26th, and 27th states of the Indian Union

The correct answer is: C. The 23rd, 24th, and 25th states of the Indian Union

Mizoram, Arunachal Pradesh, and Goa were granted statehood on 20 February 1987, making them the 23rd, 24th, and 25th states of the Indian Union, respectively.

Option A is incorrect because it lists the states in the wrong order. Mizoram was the 23rd state to be granted statehood, followed by Arunachal Pradesh (24th) and Goa (25th).

Option B is incorrect because it lists the states in the wrong order and also includes states that were not granted statehood in 1987. The 17th state of the Indian Union was Nagaland, which was granted statehood on 1 December 1963. The 18th state was Haryana, which was granted statehood on 1 November 1966. The 19th state was Himachal Pradesh, which was granted statehood on 25 January 1971.

Option D is incorrect because it lists the states in the wrong order and also includes states that were not granted statehood in 1987. The 25th state of the Indian Union was Sikkim, which was granted statehood on 26 April 1975. The 26th state was Manipur, which was granted statehood on 15 October 1972. The 27th state was Meghalaya, which was granted statehood on 21 January 1972.