Please choose the correct ending to complete the given sentence: Youth: [header] How to fake a cough in school [title] Inhale a big, deep gust of air. [step] Breathe in through your nose for as long as you can. This is key to getting enough " power " behind your cough.

Ending1: If you don't take in enough air, you will produce dainty, weak coughs that will not get anyone's attention. [substeps] Take care to breathe in discreetly, so that it doesn't look like you're preparing for the big coughing show. Ending2: [substeps] Try to keep your regular breathing pattern as even as possible during this air inhalation. Keep your mouth closed, and make sure you exhale through your nose evenly. Ending3: [substeps] It's probably best to do a one-legged yawn, rather than a long, slow exhalation (which can work better if you're coughing too forcefully). Breathe in to the count of five rather than the number of seconds you need to exhale. Ending4: Close your nostrils and exhale out through your mouth for three counts. [substeps] Carry air up to the bottom of your mouth and into your diaphragm.

Answer format: ending1/ending2/ending3/ending4