The answer is B. Scientists study artifacts they discover to form ideas on what life was like in the past. Sometimes there will pieces that doesn't make sense and so they study some more until it makes sense.
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Answer:
It was basically a way of payment to come to America. They would put in very hard work for the next 7 YEARS in order to pay for just one ticket on the ship from Europe.
Bias are looking or giving more information on different cultures, objects, ect. You try not to have a bias so it is equal and fair