Which sentence contains a comma splice?

A. Marco rode to school on his bicycle this morning, he arrived an hour early.
B. Marco, who enjoys riding his bicycle to school, arrived just before the bell today.
C. Marco rode to school on his bicycle on Monday, Tuesday, and Wednesday.
D. Marco, who rode to school on his bicycle this morning, arrived an hour early.

A comma splice occurs when two complete sentences are joined with only a comma. Proper punctuation such as semicolons, periods, or conjunctions should be used to correct this error.

Explanation:

A comma splice occurs when a writer combines two complete sentences together and only uses a comma to join them. For example, in the sentence 'Marco rode to school on his bicycle this morning, he arrived an hour early.', the comma splice is present. The correct way to fix a comma splice is by using a semicolon, a period, or a conjunction like 'and' or 'but'.

Learn more about Comma splices here:

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