1. Read the summary below. Choose the answer that BEST fits into the blank to complete the summary. Anthropologists study human societies from ancient times to today. They study signs left by humans from the past, such as footprints found in South Africa and a very old skeleton discovered in Kennewick, Washington..This information helps anthropologists and others understand how people have changed over time. * A. They also study people today in places and cultures around the world.

B. Anthropologists have determined that the first humans appeared over 100,00 years ago.

C. David Roberts is a scientist who discovered a trail of fossilized footprints.

D. They choose to live in other countries to learn more about human history.