Select the correct answer.

Which detail best develops the theme that life is not a race?

A. "As I returned to my study and imagined my visitor compassing Great Britain (I think he excluded Ireland, but I am not certain) in four days, I was for a moment roused from the state of comparative lethargy." (paragraph 4)

B. "The very walk of an English merchant, slow, dignified, self-satisfied, and that of the American, rapid, eager, anxious." (paragraph 5)

C. "For days afterwards, and as often as I was tempted to rest in my chair, the remembrance of that whirlwind gave me a shock of new vigour." (paragraph 4)

D. "No man goes slow if he has the chance of going fast, no man stops to talk if he can talk walking, no man walks if he can ride in a trolley car..." (paragraph 9)