Final answer:
While exploring themes of disillusionment and conformity, the quote "We are all sheep who have strayed at times" cannot be attributed to Ernest Hemingway, F. Scott Fitzgerald, William Shakespeare, or John Steinbeck, as it does not align with their known writings.
Step-by-step explanation:
The author of the statement, "We are all sheep who have strayed at times," is actually none of the listed options, as this specific quote does not align with the writings of Ernest Hemingway, F. Scott Fitzgerald, William Shakespeare, or John Steinbeck. Ernest Hemingway, known for his minimalist style and stories such as The Sun Also Rises and A Farewell to Arms, did not pen this line. Similarly, F. Scott Fitzgerald, famous for The Great Gatsby and his satirical take on the rich and famous, is not known for this quotation. While exploring the themes of disillusionment and conformity, none of the mentioned authors explicitly wrote this statement in their published works.