Which of the following statements are true with respect to iron ore?
2. Limestone and coal are important for smelting iron ore
3. More than 20% of the world iron ore deposits are in India
4. Odisha and Jharkhand top in the production of iron ore
5. Iran is the largest buyer of Indian iron ore
(a) I, II and III
(b) II and III
(c) III and IV
(d) II, III and IV
