Answer:
Option B. Based on the evidence provided, readers can conclude that Trey is determined.
Step-by-step explanation:
The excerpt is an account of how Rey is practicing and rehearsing playing the tuba in his bedroom. By reading it, readers can conclude that Rey is determined, as he does not give up and keeps on practicing until he starts to see positive results, and even his mom gives him the opinion that he is playing the tuba well.
Determination is the ability that someone has to continue trying to do something, even if it is difficult to do so.