Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to appreciate the benefits of taekwondo [title] Understand the guiding principle of tae kwon do. [step] It is that the practitioner should not attack, unless first confronted by an attack. If possible talk your way out of a confrontation.

Ending1: [substeps] Tae kwon do is designed to make the student non-violent, to develop a positive outlook and a feeling of confidence. Through the study of this art, students will overcome fear that naturally develops in a confrontation. Ending2: However, it is important to understand that it is entirely your choice to be kind, to exercise kindness and creativity, and to work hard. [title] Become familiar with the functions, exercises, and abilities of the various forms of taekwondo. Ending3: Focus on behaving with utmost respect and obedience to the other practitioner. [title] Keep the active side of your body facing inward and stand as straight as possible all the time. Ending4: ( know ) [title] It helps to improve the focus. [step] The focus for taekwondo practice is towards the nature of the natural world, and the philosophy of taekwondo, towards self-love, self-respect and self peace.

Answer format: ending1/ending2/ending3/ending4