Solution:Concept- Alloy, often known as a compound or a solution, is a metallic substance made up of two or more elements. Although carbon, a nonmetal, is a crucial component of steel, the components of alloys are often metals themselves.
Alloy is the homogeneous mixture of elements to produce a stable compound. The elements used in proper composition to make alloy. For example: Nichrome is an alloy made up of a mixture of nickel and chromium with proper and stable composition.
Hence, the correct answer is option (3).