 
<translate> Ndị nne na nna ga-abịanye aka na ha ga-ekwe ka ụmụ ha na-agba mgba, egwuregwu ahụ ọ̀ na-agụnye ihe mgbe nile? Nhọrọ: - ọsụsọ - Michigan - imebi ihe onwunwe - siri ike - mmetụ ahụ́ Ka anyị buru ụzọ chee echiche nke ọma. Nzọụkwụ site na Nzọụkwụ Ntụgharị uche: <eng> Parents have to sign a waiver to let their kids wrestle, the sport involves constant what?
Options:
- sweat
- michigan
- property damage
- strong
- physical contact
Let's think carefully first. Step-by-step reasoning process: 