Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to test fuel injectors [title] Put on the appropriate safety gear. [step] Before beginning any automotive project, you need to take steps to protect yourself from injury. Eye protection like safety glasses or goggles will keep debris from falling or spraying into your eyes while you work.

Ending1: Choose eye protection that fits comfortably and won't interfere with your vision. Gloves are an optional addition to the safety gear required for this task. Ending2: You will also want to wear safety clothing as you work and in addition to safety gear. [substeps] You will want to wear at least three pairs of safety goggles, a face mask and safety spectacles. Ending3: Wear a working belt, working gloves, and safety glasses when you work so you have a helper for safety. He or she should be able to stabilize you as you work and also protect your head while you test the fuel injectors. Ending4: Wearing eye protection will also allow any chemical to shock you, rather than being dispelled by a blast of dust or dirt. If you plan to test on vehicles with diesel engines, you will probably need to put on goggles, gloves, and a mask.

Answer format: ending1/ending2/ending3/ending4