Which sentence demonstrates the most appropriate use of commas?

The correct answer to the question "Which sentence demonstrates the most appropriate use of commas?" is Option C: Having finished her homework, Sarah went out to play with her friends..

The other options — A) After a long, and tiring, journey we finally reached our destination., B) Despite the severe weather warning the hikers decided to proceed., D) The old, dilapidated, house stood on the hill overlooking the town. — are incorrect for this CLEP Exam Prep question. As explained above: Option C correctly uses a comma after an introductory participial phrase. Option A has an unnecessary comma. Option B needs a comma after the introductory phrase. Option D needs a comma only between …