There are four general classes of products that the purchasing department seeks to obtain for production. Which is not one of these categories?

I will go with option B - Semi-precious materials .

It is Option B - Semi Precious Materials.

the answer is A  special items

C standard production items.

D raw material.

E items of small value.

Option B is the correct answer   --------------

Thanks for the invitation. Sorry I do not know the exact answer.