John Steinbeck believed that writers follow a very important calling. Which of the following excerpts support this idea. a. "So there went the magic formula, the secret ingredient." b. "I hold that a writer who does not passionately believe in the perfectability of man has no dedication nor nor any membership in literature." c. "He is charged with exposing our many grievous faults and failures, with dredging up to the light our dark and dangerous dreams for the purpose of improvement." d. "The ancient commission of the writer has not changed."

The correct answer is B) "I hold that a writer who does not passionately believe in the perfectability of man has no dedication nor any membership in literature."

John Steinbeck believed that writers follow a very important calling. The excerpt that supported this idea was "I hold that a writer who does not passionately believe in the perfectability of man has no dedication nor any membership in literature."

John Steinbeck (1902-1968) was the Ameican writer who wrote the famous novel "The Grapes of Wrath" in 1939. He believed that the writer should have a passion for its work and demonstrate it in its workings by constantly pursuing the perfectability of man, to really be considered a writer.

Steinbeck won the Pulitzer Prize with "The Grapes of Wrath," and wrote other novels such as "East of Eden" and "Of Mice and Men."