The Mexican muralist movement gets its inspiration from both Mexican folk art and Renaissance frescoes. Option C is correct.
Mexican muralist movement is the movement in Mexico that began in the early 1920s. The movement arose in the aftermath of the Mexican Revolution.
When the government commissioned artists to construct art that would familiarize the country's primarily illiterate population about its history and provide a powerful vision of its future.
It was inspired by the Mexican government's post-revolutionary aim of common representations, and it even hired a few Mexican muralists in the United States, including Rivera.
Therefore, option C is correct.
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