Boundaries: Punctuation and Sentence Structure

SAT Reading and Writing· difficulty 3/5

Saturn's rings are made primarily of ice particles ______ they range in size from microscopic dust to large boulders.

Which choice completes the text so that it conforms to the conventions of Standard English?

Explanation

A semicolon properly joins two related independent clauses. ", these" and "," create comma splices; " these" creates a run-on.

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