Which of the following is an example of a conglomerate?

An example of a conglomerate is United Africa Company Nigeria Plc. A conglomerate is a corporation that consists of multiple subsidiary companies operating in diverse industries and sectors. These subsidiary companies may be related or unrelated to each other. United Africa Company Nigeria Plc, for instance, is a conglomerate that operates in various sectors such as manufacturing, logistics, and real estate. Some of its subsidiary companies include UAC Foods, UACN Property Development Company, and MDS Logistics. In contrast, the other options provided are not examples of conglomerates. National Electric Power Authority is a government-owned power company, the Nigeria Railway Corporation is a state-owned railway company, and First Bank of Nigeria Plc is a financial institution. While these companies may have multiple branches or departments, they do not operate in diverse industries and sectors like a conglomerate.