Question

read it! stainless steel is a metal alloy that combines the most desirable properties of two metals: steel and chromium. though steel alone exhibits strength, it is subject to corrosion when exposed to moisture. steel containing at least 12 percent chromium retains its strength and flexibility but gains the attribute of being corrosion resistant. the presence of chromium in stainless steel forms a very thin layer of chromium oxide on its surface. this barrier staves off corrosion, sealing off the stainless steels internal structure. this feature makes stainless steel ideal for a vast number of applications in industries as diverse as aviation, food preparation, and medicine. do it! the combination is _____ a beneficial b expendable c grotesque d abrasive

Explanation:

The text states that stainless - steel, a combination of steel and chromium, retains strength and flexibility and gains corrosion - resistance. It is ideal for many applications in diverse industries. This shows the combination is advantageous. "Beneficial" means advantageous or helpful. The other options "expendable" (able to be sacrificed), "grotesque" (odd or ugly), and "abrasive" (harsh or rough) do not fit the context.

Answer:

A. beneficial