Name the coal product used in manufacture of steel and extraction of metals :

Options

A. Coke
B. Coal tar
C. Coal gas
D. None of these

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a specific product derived from coal that is used in the manufacture of steel and the extraction of metals.

2. **Identifying Coal Products**: Coal can be processed to produce several products, including coal tar, coke, and coal gas. Each of these has different uses.

3. **Analyzing the Use of Each Product**:
- **Coal Tar**: Primarily used in the production of chemicals and dyes, not directly in steel manufacturing.
- **Coke**: A solid carbonaceous material produced from coal that is used as a fuel and as a reducing agent in smelting iron ore in a blast furnace. It generates high temperatures necessary for these processes.
- **Coal Gas**: Used for heating and lighting, not typically for steel manufacturing.

4. **Conclusion**: Among the coal products, coke is the one that is specifically used in the manufacture of steel and the extraction of metals due to its ability to produce high heat.

5. **Final Answer**: The coal product used in the manufacture of steel and extraction of metals is **coke**.

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