A. Fe and C
B. Fe and Ni
C. Fe, C and Ni
D. Fe, C and Al
Correct Answer: Option C
C. Fe, C and Ni
Explanation
Stainless steel comprises iron (Fe), chromium (Cr), manganese (Mn), silicon (Si), carbon (C) and, in many cases, significant amounts of nickel (Ni) and molybdenum (Mo).
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