Which of the following sentences from Into the Wild has a positive tone?

A.
I have had a few narrow escapes from rattlers and crumbling cliffs.

B.
At the end of the summer, Everett returned home only long enough to earn a high school diploma.

C.
I have always been unsatisfied with life as most people live it.

D.
Always I want to live more intensely and richly.

D. Always I want to live more intensely and richly.