Which excerpt from Walden BEST shows Thoreau living "deliberately"?

A"I got up early and bathed in the pond; that was a religious exercise…"

B"…for an hour, at least, some part of us awakes which slumbers all the rest of the day and night."

C"There was something cosmical about it; a standing advertisement…"

D"To affect the quality of the day, that is the highest of arts."