Consider the following statements with respect to the Central Highlands of India:
1. The general elevation of the Central Highlands ranges between 700-1,000 m above the mean sea level.
2. It slopes towards the north and northeastern directions.
3. An eastern extension of the Central Highland is formed by the Rajmahal hills.
Which of the statements given above are correct?
1
1 and 2 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3