Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to prevent nose bleeds [title] Don't pick your nose. [step] By far the most common type of nosebleeds are anterior nosebleeds, when the bleeding comes from the lower septum, the wall between the two channels of your nose. This area has a lot of sensitive blood vessels that can bleed profusely when irritated.

Ending1: Picking your nose means picking up your blood, not picking and biting, and so, as is walking at a pedestrian crossroad or other peripheral looking action, you might accidentally snap. [title] Use an air purifier. Ending2: You shouldn't pick at your nose, however. Picking may damage the septum bone, which is often the cause of nose bleeds. Ending3: Picking your nose is one of the prime irritations that can cause these kinds of nosebleeds. [substeps] You should generally avoid picking your nose if you want to lower your chance of nosebleeds. Ending4: As a result, picking your nose and looking into it when bleeding can lead to a nosebleed. The best way to fight the bleeding is to always pick your nose.

Answer format: ending1/ending2/ending3/ending4