What was Marcel Duchamp's intention for help piece seen above? A. to rebel against classical art B. to shock the art critics C. to change the meaning of a common household item D. to summit a new invention idea

C. to change the meaning of a common household item

Explanation:

"Marcel Duchamp" was a French-American artist and writer who became popular for his "readymades."

The readymades were common goods or household items (unaltered objects) that were used in order to express "retinal art." He couldn't fully explain this kind of art form thus, it was often rejected by jury's of art. Most of the time, people do not seem to notice it in art shows.

An example of his art is the "Fountain," a porcelain urinal which caused a debate whether it was indeed an art or not.

So, this explains the answer.