Final answer:
The belief that government should be guided by religious forces is what would have to change to transform an authoritarian government into a theocracy.
Step-by-step explanation:
The correct answer is A. To transform an authoritarian government into a theocracy, people would have to believe that the government should be guided by religious forces. In a theocracy, religious leaders hold power and make decisions based on religious principles and teachings. This is different from an authoritarian government where power is concentrated in a single ruler or a small group, often without any religious influence.
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