Read this excerpt from We Beat the Street.
"But I don't want to teach—| want to be a doctor or nurse or something medical."
"I don't even know what you have to do to become something like that," Sampson said honestly.
"I don't know either," George said. "But I figure you need big piles of money and about a million years to spend in college."
"Hassan and Ahi are going to Howard University in D.C.," Rameck commented, "but their folks have a little cash." He fell silent. ...
Sampson drove the other two home then, their hopes and dreams left in the starlight.
What central idea do the details in this passage support?

The central idea that the passage supports is that the three boys, George, Sampson, and Rameck, faced challenges in pursuing their dreams of becoming medical professionals due to financial limitations. The passage highlights their lack of knowledge and resources to achieve their goals and the role of their friends Hassan and Ahi's enrollment in Howard University as a contrast. The passage emphasizes the significance of financial support in achieving one's dreams and the disappointment and uncertainty of the three boys in achieving their aspirations.