Consider the following statements:

1. Coking coal has high carbon and sulphur content compared to non-coking coal.

2. Coking coal is an essential ingredient of steel production.

3. India imports coking coal.

Which of the above statement(s) is/are correct?

1
2, 3
2
1, 2, 3
3
1, 2
4
1, 3

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