The most accurate answer regarding what led to the death of Montezuma is:
B. Montezuma died as a result of injuries sustained at the hands of his own people during an Aztec revolt against the Spaniards.
Montezuma II, the ninth ruler of the Aztec Empire, was taken captive by the Spanish conquistador Hernán Cortés in 1519. Although initially, Montezuma tried to manage the situation and communicate with his people, the situation grew increasingly tense as resentment toward the Spanish presence and their demands escalated.
In 1520, after an uprising in Tenochtitlan, Montezuma was struck by stones thrown by his own people during a confrontation. He later succumbed to his injuries, though accounts of his death vary. Some historical narratives suggest that he was killed directly by the Aztecs, while others point to the injuries he sustained. Ultimately, his death catalyzed further conflict within the Aztec Empire against the Spanish invaders.