Which version of the sentence correctly uses punctuation to join two independent clauses?
A scholar who studies linguistic evolution argues that language change is inevitable; she also contends that prescriptive grammar rules often lag decades behind actual usage.
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A
A scholar who studies linguistic evolution argues that language change is inevitable; she also contends that prescriptive grammar rules often lag decades behind actual usage.
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B
A scholar who studies linguistic evolution argues that language change is inevitable, she also contends that prescriptive grammar rules often lag decades behind actual usage.
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C
A scholar who studies linguistic evolution argues that language change is inevitable: she also contends that prescriptive grammar rules often lag decades behind actual usage.
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D
A scholar who studies linguistic evolution argues that language change is inevitable— she also contends that prescriptive grammar rules often lag decades behind actual usage.