Questão 49 da ESA 2021

Marque a única alternativa correta de acordo com o texto abaixo. The Ovambo people in Namibia traditionally build a house for their children, using wooden poles standing closely together to form circular walls. However, as the region where they live is running short of trees, this enterprising ethnic group is turning to a more abundant building material: the empty beer bottles that litter the roadsides and are cheaply available at local stores.