 
 <translate> Trees have woody stems covered with bark. During the stripping, the protective layer of inner bark is removed. Trees have woody stems covered with a protective layer.
So, the final answer is (D). <ibo> Osisi ndị ahụ nwere ogwe osisi ndị akpịrị kpọrọ nkụ na-ekpuchi. N'oge a na-akwapụ ya, a na-ewepụ ihe ahụ na-echebe ya n'ime. Osisi nwere mkpá akwụkwọ ndị e ji ihe e ji echebe ha kpuchie. Ya mere, azịza ikpeazụ bụ (D). 