This question is based on the short story “The Third Level.” The story blends fantasy and reality and explores themes of escapism and psychological stress.
Step 1: Identify the author.
“The Third Level” was written by Jack Finney, an American author known for his science fiction and fantasy works.
Step 2: Analyze the options.
(A) George Orwell: Known for “Animal Farm” and “1984,” not this story.
(B) Agatha Christie: Famous for detective novels, not this story.
(C) James Joyce: Known for modernist works like “Ulysses,” not this story.
(D) Jack Finney: This is correct as he wrote “The Third Level.”
Step 3: Conclusion.
Since Jack Finney is the author of “The Third Level,” the correct answer is (D).
Final Answer:
\[
\boxed{(D) \, \text{Jack Finney}}
\]