Which of the following actions by a ruler would best serve as an example of the "strategy" referred to in the passage? A. Marrying the son or daughter of the ruler of a neighboring territory despite parental opposition. B. Putting on a spectacular parade to celebrate a recent military victory. C. Installing one's heirs in positions of power before they reach adulthood. D. Seizing the properties of the local nobility in order to increase personal holdings. E. Awarding a potential competitor a coveted position in the royal palace in exchange for allegiance.