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AP English Language
AP.237 Commas
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Which sentence correctly sets off a nonessential clause that limits the scope of research evidence?
A
The study's narrow sample which included only volunteers from one district, limits the claim's scope.
B
The study's narrow sample which included only volunteers from one district limits, the claim's scope.
C
The study's narrow sample, which included only volunteers from one district limits the claim's scope.
D
The study's narrow sample, which included only volunteers from one district, limits the claim's scope.
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