Which of these excerpts from "the first seven years" by bernard malamud best exemplifies the desire to improve one's socioeconomic status?

In the first seven years by Bernard Malamud, there is an excerpt that said

"Ever since you went to high school," he said, in the dimly-lit hallway, "I watched you in the morning go to the subway to school, and I said always to myself, this is a fine boy that he wants so much an education."
The fact that the yound boy worked so hard to obtain the education indicates that the young boy had a really huge ambition for the future. And he percieved good education as a really important factor if he wanted to fulfill his ambition

From mexican american war , us gained new mexico.

B. total incorporation