Answer:
D. A conglomerate
Step-by-step explanation:
A Conglomerate is a big corporation that is composed of a various combinations of business entities seemingly unrelated but under one corporate group. It is a big organization that has numerous products and services which vary extensively from one another. It is a big parent company comprising of many subsidiaries producing different products and offering different services. In this case, Red Empire is a conglomerate, the parent company having subsidiaries in petroleum, capital markets, chemicals, steel, beverages, hospitality, airlines, education, automobiles, and consumer electronics industries all with their various brand names.