Medium
Which one of the following statements shows the correct percentage of carbon in steel,pig iron and wrought iron?
- ASteel containing less than $0.15\%$ carbon; wrought iron $0.15$ to $2.0\%$ carbon; and pig iron over $2\%$ carbon
- BPig iron less than $0.15\%$ carbon; wrought iron $0.15$ to $2.0\%$ carbon; and steel over $2\%$ carbon
- CWrought iron less than $0.15\%$ carbon; steel $0.15$ to $2.0\%$ carbon; and pig iron over $2\%$ carbon
- DWrought iron less than $0.15\%$ carbon; pig iron $0.15$ to $2.0\%$ carbon; and steel over $2.0\%$ carbon
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