Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to speak clearly [title] Take a deep breath. [step] Calm yourself down before you start speaking, so that your lungs won't run out of air. Distill your thoughts-do not spill them.

Ending1: If you dive into speech without taking time to ground yourself, you may speak more quickly and slur your words. Take the time to center yourself, and proceed mindfully from there. Ending2: Trying to craft vocabulary into words will confuse you and make you nervous. [substeps] Try to pause in mid-breath, but don't exhale. Ending3: Breathe slowly and evenly through your mouth, counting to five before you exhale. [substeps] When the breath is in the back of your throat and in your chest, the digestive tract is synchronized, and makes speaking sound as fluid and automatic as possible. Ending4: If possible, speak from a position that is comfortable to you. Make sure that you don't make a sound that you think feels like a choking sound.

Answer format: ending1/ending2/ending3/ending4