Which passage below has the most critical tone?

A)
On the train, the man slowly clipped his fingernails. He focused on the task,
beginning with his pinky finger and finishing with his thumb.

B)
On the
train, the tired, old man began clipping his fingernails. He was trying to
distract
himself from his loneliness by focusing
on this one small task, moving
from pinky to thumb

C)
The man -
right in the middle
of the crowded train-began to clip his long, yellow
fingernails. He did it slowly, as if he didn't even care that a dozen other people
could see and hear him.

D)
The man on the train clipped his fingernails. It took him 2 minutes
He started on his pinky and finished with his thumb. When he
and 8 seconds.
the clippers back into his jacket pocket.
was finished, he put the clippers back into his jacket pocket.