Final answer:
Portugal's attempt to Christianize the Sultanate of Ternate resulted in strengthening the local Muslim devotion and led to the Portuguese expulsion from the region in 1575.
Step-by-step explanation:
The result of Portugal's effort to Christianize the subjects of the Sultanate of Ternate was, in fact, an intensification of the local population's commitment to Islam leading to resistance against the Portuguese. This occurred after Sultan Hairun's death, when his son Sultan Babullah declared a holy war against the Portuguese, resulting in their expulsion from the Moluccas (modern-day Maluku Islands) in 1575. The Portuguese attempt to convert the people angered the Muslim inhabitants, thereby strengthening their devotion to Islam and ultimately thwarting the Portuguese objectives.