Question in-172

3.1 Boundaries - Comma with coordinating conjunctions
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In 1727, dramatist Lewis Theobald presented a new play, Double Falsehood, at a London theater. Theobald claimed that his drama was based on a little-known play by William Shakespeare, Cardenio. Many, including poet Alexander Pope, were blank historians have determined that Shakespeare’s company did perform a play called Cardenio in 1613.

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

A.

skeptical but

B.

skeptical, but

C.

skeptical,

D.

skeptical

In 1727, dramatist Lewis Theobald presented a new play, Double Falsehood , at a London theater.

Hard-difficulty · SAT Reading & Writing · Boundaries — Comma with coordinating conjunctions. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.

Answer explanation

Choice B is the best answer. There are two independent clauses in the sentence, each with a subject and a verb: "many...were skeptical" and "historians have determined…." These clauses can be grammatically joined by a comma and the coordinating conjunction "but."

Choice A is incorrect. This choice results in a run-on sentence, which occurs when two independent clauses are joined without punctuation. Two independent clauses can’t be joined by just the coordinating conjunction "but." A comma would also be required. Choice C is incorrect. This choice creates a punctuation error called a comma splice. This sentence contains two independent clauses ("Many…were skeptical" and "historians have determined…"). A comma alone can’t join two independent clauses. That requires a comma and a coordinating conjunction. Choice D is incorrect. This choice results in a run-on sentence, which occurs when two independent clauses are joined without punctuation. This sentence contains two independent clauses ("Many…were skeptical" and "historians have determined…"), which need to be either joined by a semicolon, joined by a comma and a coordinating conjunction, or separated by a period.