The Scythians were nomadic warriors who lived in Central Asia in the ninth century B.C. Before disappearing during the second century A.D., they had spread westward into Eastern Europe. What is the time period during which the Scythians existed?
1) ninth century B.C. to second century A.D.
2) fifth century B.C. to third century A.D.
3) fourth century B.C. to first century A.D.
4) seventh century B.C. to fourth century A.D.