Question: Paul hated being a passenger in the car when his wife Elaine was driving because she crawled along at a snail's pace, but he loved being a passenger when his friend Rex drove because Rex was a speed demon! On a recent shopping trip, the car Paul was in made it to the mall in record time because he was riding with (A) Rex (B) Elaine.  Do not use A and B to answer the question but instead, choose between "Rex at the wheel" and  "Elaine at the wheel".
A:
Rex at the wheel