I believe that its medal. Jake is the subject and showed is the verb the direct object has to be medal.
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The negro artist and the racial mountain was written in response to "The Negro Art Hokum" written by George S. Schyler. It was published on June 16, 1926 and was printed in “The Nation.” The word “hokum” means general nonsense. It says that the negro art movement was a nonsense and had no specific role to play on. He wanted to remove the stereotypes related to the negro art and literature which the society wanted to build.