Final answer:
According to the Brookings Institution, approximately 84.6% of working adults in the United States drive to work alone every day.
Step-by-step explanation:
According to the Brookings Institution, approximately 84.6% of working adults in the United States drive to work alone every day. This is based on the information provided:
Out of the total number of Americans who commute to work by car, truck, or van (86.5%), 84.6% of them drive alone, while the remaining 15.4% drive in a carpool.[1]
Therefore, the correct answer to the given question is a) 76%.
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