Final answer:
Zhu Zanji decided to end the voyages of Zheng He due to a renewed spirit of isolationism and to save money by avoiding the expense of the voyages. The correct answer is d) A and B, as the competition with the French is not historically accurate for Zhu Zanji's period. The correct option is D.
Step-by-step explanation:
The decision to end the voyages of Zheng He by Zhu Zanji, Chinese emperor, can be attributed to multiple reasons. One significant factor was a spirit of isolationism in the Chinese court under Zhu Zanji, favoring Confucian governmental principles that discouraged maritime expeditions and trade.
Furthermore, there was the practical consideration of wanting to save money and avoid the expense of these extensive voyages. This period marked a shift in Chinese imperial policy back to focusing on internal affairs and fortifying its borders against the Mongols.
While competition with the French in the Indian Ocean did occur, it was not during Zhu Zanji's reign, making this option anachronistic. Therefore, the correct answer is d) A and B. Both a renewed isolationism and the desire to reduce financial outlays played pivotal roles in this decision.