To solve this question, we need to identify which of the given options is an ore of iron.
1. Understanding the Ores:
- Bauxite: An ore of aluminum (Al).
- Haematite: A primary ore of iron (Fe2O3), rich in iron content.
- Carnallite: An ore of potassium and magnesium.
- Pyrolusite: An ore of manganese (MnO2).
2. Identifying the Correct Answer:
Among the options, Haematite is the correct ore of iron.
Final Answer:
Option (B) Haematite is correct.