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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what are the choices? the multiple choices?

i will answer in the comments after the choices have been said.

that is alot i do not no