Which of the following are the ingredients of gun metal?

Options

A. Iron, Tin
B. Copper, Tin
C. Iron, Brass, Tin
D. Iron, Zinc, Titanium

Explanation

**Step-by-Step Solution:**

1. **Understanding Gunmetal**: Gunmetal is an alloy, which means it is a homogeneous mixture of different metals.

2. **Composition of Gunmetal**: The typical composition of gunmetal consists of approximately 88% copper, 10% tin, and 2% zinc.

3. **Analyzing the Options**:
- **Option 1**: Iron and Tin.
- Iron is not a component of gunmetal, so this option is incorrect.
- **Option 2**: Copper and Tin.
- Both copper and tin are part of the gunmetal composition, making this option correct.
- **Option 3**: Iron, Brass, and Tin.
- Iron is not a component, and brass is an alloy of copper and zinc, not a metal itself. Therefore, this option is incorrect.
- **Option 4**: Iron, Zinc, and Titanium.
- None of these are ingredients of gunmetal, making this option incorrect.

4. **Conclusion**: The correct ingredients of gunmetal are Copper and Tin, which are found in Option 2.

**Final Answer**: The ingredients of gunmetal are Copper and Tin.

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