John just became CEO of a large company that manufactures the same basic type of product as other companies in this industry. As a result, the organization$$s priorities are efficiency and control$$because profit margins are very low in the industry. Which of the following aspects of organizational design would best fit John$$s company?

a$.$ centralized with matrix structure

b$.$ centralized with line structure

c$.$ decentralized with matrix structure

d$.$ decentralized and flat