The conversion of raw materials into finished goods is performed by?

A. extractive industry
B. service occupation
C. commercial occupation
D. the manufacturing industry

Correct Answer: Option D

D. the manufacturing industry

Explanation

The term may refer to a range of human activity, from handicraft to high tech, but is most commonly applied to industrial design, in which raw materials are transformed into finished goods on a large scale. Such finished goods may be sold to other manufacturers for the production of other, more complex products, such as aircraft, household appliances, furniture, sports equipment or automobiles, or sold to wholesalers, who in turn sell them to retailers, who then sell them to end-users and consumers.