Each Group of Sentences Can Be Arranged and Written as a Paragraph

Multiple Choice

Each group of sentences can be arranged and written as a paragraph. Select the letter of the sentence that would be the best topic sentence.
-______________

A) Even driving in traffic as little as fifteen minutes has been shown to elevate blood pressure and cholesterol, which lead to cardiovascular disease.
B) A long daily commute through heavy traffic often has negative consequences.
C) The longer the commute, the higher the driver's risk of injury and death from accidents.
D) Studies have shown that drivers who commute through heavy traffic often display emotional and behavioral problems when they arrive at work.