Bernoulli's Principle: You Are Driving a Late Model Convertible Car

Bernoulli's principle: You are driving a late model convertible car at the 65 mph speed limit with its soft flexible roof closed up and the windows closed. You observe that the roof

A) bows inward.
B) is no different from when the car was at rest.
C) bows outward.
D) bows inward only when you are driving uphill.
E) bows inward only when you are driving downhill.