Read the text excerpt and answer the question.
Tom appeared on the sidewalk with a bucket of whitewash and a long-handled

brush. He surveyed the fence, and all gladness left him and a deep melancholy

settled down upon his spirit. Thirty yards of board fence nine feet high. Life

to him seemed hollow, and existence but a burden. Sighing, he dipped his brush

and passed it along the topmost plank; repeated the operation; did it again;

compared the insignificant whitewashed streak with the far-reaching continent

of unwhitewashed fence, and sat down on a tree-box discouraged.
Why does life seem “hollow, and existence but a burden” to Tom?

a. It is a hot day.
b. It will take him a long time to whitewash all of the fence.
c. He would rather sit down all day.
d.The whitewash smells bad.
e.he top of the fence is too high for him to reach.