Which of the following statements is/are correct?
1. The territory of the units of the Indian Federation may be altered by the Parliament by a simple majority.
2. The consent of a State Legislature is necessary before the Parliament on redistribution of its territory.
3. The President's recommendation is necessary for introducing the Bill in the Parliament on redistribution of territory of any State.
4. The President must receive the State's opinion before recommending a Bill on altering the name of the State.
Correct option is D. 1 and 3