Buildings that express power and authority demonstrate which function of art?
a. religious ritual.
b. persuasion.
c. self-expression.
d. commemoration.

b. persuasion

Explanation:

According to my research on the different functions of art, I can say that based on the information provided within the question this best demonstrates the function of art known as persuasion. This is an action that makes you think more on something that you might otherwise not have paid much attention to. Power and Authority are two persuasive categories.

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manifest functions are the recognized and intended consequences of any social pattern, while latent functions are those unrecognized and unintended consequences. to analyze the manifest functions of any social institution, we have to study its contribution to the continuation of a group, community, or society.