 
<translate> Uwe ndị nkịtị enweghị ọrụ nchedo radieshon, mkpuchi okpomọkụ na mkpuchi ikuku, ma nwee ike ichebe ndụ ndị njem mbara igwe. Ya mere azịza ya bụ nkebi ahịrịokwu B. <eng> Ordinary clothes don't have the functions of radiation protection, heat insulation and air insulation, and can protect astronauts'lives. So the answer is Sentence B. 