Answer:
C. Humans have been on Earth for a very short amount of time
Explanation:
using process of elimination, insects were around before dinosaurs were so that takes away B and C, then humans have been on earth for around 200,000 years which definitely isn't hundred of millions so it's most likely C
Caesar Augustus defeated his enemies, ending the civil war
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The first european settlers to establish colonies in the united states consisted of Spanish settlers.