Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to sing louder [title] Use good body posture. [step] Stand up straight so your shoulders aren't hunched forward. Try to keep your head facing straight.

Ending1: Relax your hands and avoid locking your knees. If you have to sit down while you sing, keep your back straight against the chair and keep your shoulders pulled back. Ending2: [substeps] Try not to make your head tilt to one side too quickly. This can lead to increased strain on the vocal cords during singing. Ending3: Lift your chin up higher as you breathe. Breathe through your diaphragm or air coming from your nose. Ending4: Don't slouch so that you look like you're leaning into an invisible wall. Your posture should be pronounced like this : [substeps] Don't slouch because this will be misleading.

Answer format: ending1/ending2/ending3/ending4