Select from: A. Remove the carbon filter, the miles cap, and the wire strainer. Use a screwdriver or a normal tool to remove these containers. B. You can find the air filter on the dash wall or on the underside under the windscreen panel. If you don't have access to the engine, look for batteries, lighters, injectors, or even some other electronic equipment that may have caught or damaged the air filter. C. There should be a switch, or outlet, that moves air through a moving vehicle into a cylinder or tube. If using a generator, there should be a switch next to the air pump, or you may need to refer to a diagram to find the air valve. D. Unscrew the wing-nut and any other connectors, and then remove the air filter entirely. Depending on your make and model, and the kind of engine in the vehicle, the air filter could be in any number of different places on the engine.Choose from options above and answer: What most naturally follows?

How to adjust a carburetor
Locate the air filter and remove it.
On most cars, you'll need to remove the air filter to expose to carburetor and adjust it. Open the hood and make sure the engine is off before locating the air filter and removing the assembly.
Answer:
D.