Your title and thesis should make it immediately clear where you stand and what side you are arguing on.

Duchamp’s Fountain(1917)  has been called the most important work of the twentieth century. In an  essay of 300 words, please either agree with this and argue that it is  the most important work of the twentieth century, or disagree with it  and argue why it is not an important work. Pick one position and stay  with it throughout your essay. Your title and thesis should make it  immediately clear where you stand and what side you are arguing on.