Final answer:
The correct option is C). A wholly owned subsidiary is the most effective method to keep a subsidiary and host nation dependent on the parent corporation, as it ensures complete control with no sharing of operations or knowledge.
Step-by-step explanation:
The method that would most likely be successful in keeping a subsidiary and the host nation dependent on the parent corporation is a wholly-owned subsidiary. A wholly owned subsidiary maintains complete control by the parent company, meaning that all operations, decision-making, and profits remain within the parent company's governance. This method maximizes control and minimizes the risk of technology or strategic process leakages to competitors or the host nation, as opposed to joint ventures, licensing, or franchising which involve sharing control and knowledge with other parties.