Which statement would the narrator consider the thesis for the story?

Which statement would the narrator consider the thesis for the story?
A) An unhappy gentleman becomes content the moment he finds and marries a lady with class and sophistication.
B) ’Beauty is in the eye of the beholder,’ thus, what some see as a flaw may be seen as a strength to others.
C) Mrs. Bullfrog’s ’deficiency’ was revealed when she lost her temper after the stagecoach incident and maliciously assaulted the stagecoach driver.
D) Mr. Bullfrog, after courting countless women who were flawed in some way, finally settled for a woman, whom he asked to marry, that he recognized right away as seriously flawed more than the others.