Which sentence best shows the reader what the narrator’s brother is like?

Question

For a whole month, my brother came home every day after school and worked on his college applications.
My brother, the oldest child in our family, is six years older than I am and nine years older than my sister.
My brother is very motivated to succeed in achieving the goals he has set for himself.
After my brother went to college, I thought a lot about the goals I want to achieve for myself.

Answer 1

The sentence that best shows the reader what the narrator’s brother is like is:

"My brother is very motivated to succeed in achieving the goals he has set for himself."

This sentence directly conveys the brother's character trait of motivation and ambition.