Available options:
(a). Clean in your vehicle if you have any scraps of trash or other debris on it. If your car is not, collect and throw away any trash items that were thrown away before visiting the drop off spot.;
(b). Remove any trash or leftover items of food at a gas station or service station before starting your trip. Although washing the exterior of your car is not necessary, do so if your car is extremely dirty.;
(c). Here are a few ideas : Run to the drop off area. Rush ahead of the vehicles leaving the scene and take out the trash.;
(d). Be kind and casual while you are at the drop off zone to avoid appearing sloppy and unprofessional. This is likely to occur at plenty of drop-off locations.;Choose from options above and answer: What most naturally follows?

How to use a parking valet
Clean your car before entering the drop off zone.
It is appropriate and courteous to pick up any trash or garbage before dropping your car off with a valet service. As the valet workers will be driving your car, it is respectful to tidy up and ensure that their experience driving your car is not a negative one.
Answer:
(b).