Keystone Foods, Which Invented the Individual Quick Freeze Process for Beef

Multiple Choice

Keystone Foods, which invented the individual quick freeze process for beef, provides McDonald's with millions of pounds of chicken, beef, and fish annually for use in its restaurants. The firm sources the animal proteins from farms and processes them in a variety of ways, such as breading or freezing, before selling them to McDonald's. Keystone is operating in ________ market.

A) a heavy goods
B) a government
C) a service
D) an industrial
E) a reseller