Given their skills and education, American workers in hostile regions such as Iraq earn higher incomes than American workers in the homeland. This is partly because:
A. American workers in Iraq face a higher risk of getting kidnapped and killed.
B. jobs in Iraq in general require more education.
C. the U.S. government restricts the number of American workers to work in Iraq.
D. only a few people have the skills necessary for jobs in Iraq.
Answer: A
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