Read this excerpt from We Beat the Street

"Hassan and Ahi are going to Howard University in D. C." Rameck commented, "but their folks have a little
cash." He fell silent.
"I think it would be cool to go into business, "Sampson said, "You know, become an entrepreneur and own some big
company " He sounded a little vague.
"What kind of business is there around here except for drugs and crime?" George asked bitterly
"Show business!" Rameck told him "We can be rap stars!"
"Yeah, right. You need money even to do that," Sampson told him
Sampson drove the other two home then, their hopes and dreams left in the starlight

What causes the friends to believe that their dreams are too difficult to achieve?
A- their lack of talent
B- their lack of success
C- their lack of money
D- their lack of determination