Boundaries: Punctuation and Sentence Structure

SAT Reading and Writing· difficulty 2/5

The eclipse began at 2:17 p.m. ______ so spectators along the coast had ample time to set up their viewing equipment.

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

  • A

    :

  • B

    ,

    check_circle
  • C

    (empty)

  • D

    ;

Explanation

Two independent clauses joined by the coordinating conjunction "so" require a comma before "so."

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