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Read the sentences. Compasses do not work at the magnetic poles. The magnetic field at these poles is vertical. Which choice shows the punctuation and/or conjunction needed to correctly combine the sentences? A. poles; the B. poles; and the C. poles, the D. poles and the

Answer :

A.), because one pauses here, a comma wouldn't make sense.

Compasses do not work at the magnetic poles;the magnetic field at these poles is vertical.

( A )poles;the

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