Authors use physical traits, private thoughts, behavior, and conversations to define their characters. In which of the following excerpts does Ernest Hemingway use characterization to define the narrator in "In Another Country"?

1)But I stayed good friends with the boy who had been wounded his first day at the front, because he would never know now how he would have turned out; so he could never be accepted either, and I liked him because I thought perhaps he would not have turned out to be a hawk either.

2)We were all at the hospital every afternoon, and there were different ways of walking across the town through the dusk to the hospital. Two of the ways were alongside canals, but they were long.

3)My knee did not bend and the leg dropped straight from the knee to the ankle without a calf, and the machine was to bend the knee and make it move as riding a tricycle. But it did not bend yet, and instead the machine lurched when it came to the bending part.

4)The major, who had been a great fencer, did not believe in bravery, and spent much time while we sat in the machines correcting my grammar. He had complimented me on how I spoke Italian, and we talked together very easily.