Use the passage to answer the question. Which of the following sentences from "The Pin" best supports the optimistic tone in the story?

I could and would work hard to improve my situation.
I wore a corny-looking straw hat like old­-time politicians used to wear at conventions.
I boldly walked up to people and introduced myself.
Now I wear a pin on my lapel that says “Freshman Class President.”

"I could and would work hard to improve my situation."