Here's a logic test: 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.  Choose the answer between "Rex at the wheel" and "Elaine at the wheel".
A:
Rex at the wheel