The correct answer is A. Olmec
They were the group of people that lived in the central and south America before all the more famous groups like Aztecs, Maya and Inca. They created the calendar that was used by those three later and many believe that they are the creators of the concept of zero.
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It was in the 16th century I think
Answer:
they are the back up plans. if the president were to die the vice president would get his job. if the vice president were to die the speaker of the house would get the job
Explanation:
