Read the following sentence.

it is important—actually, it is essential—that the extreme athlete choose the right shoe for the sport.

why are dashes, rather than parentheses or commas, used in this sentence?
a.
dashes are being used because they set off longer, less-related parenthetical asides.
b.
dashes are being used to set off brief, closely-related parenthetical asides.
c.
dashes are being used to set off an aside that deserves emphasis.
d.
dashes are being used to set off an appositive.

Juanito. hey, don't leave yet. what type of work? and where? who do i see? hey, don't leave yet! the duende. (the duende stops and turns). be careful. danger. danger. (he exits.) —blanca flor, angel vigl read these lines from the play again, then rewrite them as they might appear in a novel. the answer is 'hey, don't leave yet," cried juanito. "what type of work? and where? who do i see? hey, don't leave yet! " the duende stopped and turned back to juanito. "be careful. danger," he warned. as he turned to leave, he repeated: "danger."