Stainless steel is an alloy comprising of?

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).