Respuesta :
The sentence that correctly uses dashes to revise the error is: 2. Everyday Americans—not just prodigies—should have access to learning to play an instrument.
What are Dashes?
Dashes are punctuation marks that are used to separate additional thoughts in sentences. In the sentence above, we find that the usage of dashes helped to further highlight the type of Americans being spoken about.
So, option 2 is right.
Learn more about dashes here:
https://brainly.com/question/26112824