Independent clause uses commas to separate independent clauses when they are joined by any of these seven coordinating conjunctions: and, but, for, or, nor, so, yet.
However
The answer is B. However
Answer:
The <em>parents</em> of <em>Barack Obama</em> were <u><em>Barack Obama Sr.</em></u> & <u><em>Stanley Ann Dunham.</em></u>
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