Answer:
D. Provide a real-life example of the benefits of hypermiling.
Step-by-step explanation:
In the given passage, the author talks about hypermiling and what it means. Moreover, the passage also talks about how hypermiling helps in improving the fuel economy of a vehicle.
In the second paragraph of the passage, the author provides an example of a 2005 Honda Accord that "went from 24 mpg to 35 mpg after adopting hypermiling techniques for one year." And by mentioning this example, the author provides a real-life case of the benefits of hypermiling.
Thus, the correct answer is option D.