Answer:
D. Jen is Driving
Step-by-step explanation:
It is never specifically said that Jen was driving but pulling into a drive through and pulling out into the road are both clear indications of driving. Although it's never said that she was a student, nothing indicates her being a student, eliminating answer A. Answers B and C are not inferences as they are already stated clearly in the text so those answers are eliminated. The only answer left is D. Jen is driving.