<u><em>I Think That The Correct Answer Is...</em></u>
<u><em>B. 2 Only.</em></u>
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Dr Veenstra investigates the impact of racial prejudice on behavior. Dr Veenstra is most likely a(n) social psychologist.
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Corn and potatoes are crops that provide relatively many calories, are easy to cultivate and can be planted in many climates, including ones with winter. They contributed to people being able to produce more food. How important was that can be seen through the fact that when a blight hit the potatoes in Ireland, a famine took place.