Answer:
Purchasing
Explanation:
In the purchasing function, the company purchased the products and services from the manufacturer at a lesser cost and then sell the goods at higher prices in order to earn the profit.
When someone purchases, when the price is less and quality is best as compared with the competitors dealing in the same industry
Therefore in the given case, Cedric Stein orders aluminum component parts that are used in the Audi card production so here the purchasing function is used
