Please choose the correct ending to complete the given sentence: Health: [header] How to pass a nicotine urine test [title] Taper your nicotine use for at least 2 weeks before the test. [step] To pass the test, you need to get the nicotine out of your system. Because quitting cold turkey can be challenging, reduce your nicotine usage at least 2 weeks in advance.

Ending1: Quitting cold turkey can be even harder, as nicotine can become trapped under your skin or down your throat. [substeps] Nicotine cessation programs can help you meet your nicotine requirement. Ending2: The sooner you begin tapering, the less nicotine you'll need to worry about purging. [substeps] For example, if you smoke a pack a day, gradually cut back by having 1 less cigarette every day. Ending3: [title] Skip nicotine gum throughout the test. [step] Nicotine gum will help decrease nicotine cravings by blocking any bad ionizing agent from leaving your body (nicotine) and entering your bloodstream. Ending4: Avoid using a lighter or any other lit method right before the test. [substeps] Nicotine in cigarettes (either white or black) comes in a variety of flavors, including tartar, oregon, sodium, and arsenic.

Answer format: ending1/ending2/ending3/ending4