Coking Coal

According to a recent report published by Fitch Solutions Macro Research, India will overtake China as the largest importer of coking coal by 2025.Consider the following statements about the coking coal:

  1. Coking coal, also known as metallurgical coal, is used to create coke, one of the key irreplaceable inputs for the production of steel.
  2. Coke is produced by heating coking coals in a coke oven in oxidizing atmosphere.
  3. The property that really sets coking coals apart from other coals is its coking ability, which is the specific property required in order to make coke suitable for steel making.
  4. Coking coals generally have volatile matter contents of 20% to 32% – i.e., the low- and medium-volatile anthracite ranks.

Which of the following statements given above is/are correct?

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