Period 1 Development in the Arctic, Which Stretches from 15,000-5,000

Period 1 development in the Arctic, which stretches from 15,000-5,000 BCE, can BEST be described as the stage __________________.

A) that provides the earliest evidence of the use of oil lamps and insulated clothing
B) when first contact was made with European explorers
C) prior to the arrival of people when large land mammals moved into the region
D) that provides the earliest indisputable archaeological evidence for people in the Arctic