Which line in the excerpt from “out, out—” by robert frost uses metonymy?
the boy's first outcry was a rueful laugh,
as he swung toward them holding up the hand
[half in appeal, but half as if to keep] [the life from spilling. then the boy saw all] since he was old enough to know, big boy
[doing a man's work, though a child at heart]
he saw all spoiled. 'don't let him cut my hand off
[the doctor, when he comes. don't let him, sister! ]
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