In James Thurber's story "The Secret Life of Walter Mitty," what do readers learn about the title character over the course of the story?
A.
Mitty leads a life of adventure and excitement but secretly longs for a quieter existence.
B.
Mitty understands the importance of standing up for himself.
C.
Mitty enjoys a close friendship with his wife.
D.
Mitty seems an awkward and bumbling fellow but is a different person in his own mind.