<span>Sadie lacks object permanence. Object permanence means that objects still exist even when they cannot be viewed. It not unusual for Sadie to lack object permanence because it is not something infants possess. Infants gained the ability as they grow older through touching objects and holding the objects they think stopped existing.</span>
C) metal workers
proof:<span>The name 'Iron Age' comes from the discovery of a new metal called iron. ... Before the Iron Age the only metal used in Britain to make tools was bronze, which is an alloy of copper and tin (hence the Bronze Age). Where did the Celts come from? The Celts lived across most of Europe during the Iron Age.</span>
The answer is D. Bantu Poeples. Bantu peoples is used as a general label for the 300–600 ethnic groups in Africa who speak Bantu languages. They inhabit a geographical area stretching east and southward from Central Africa across the African Great Lakes region down to Southern Africa.
