题目内容
（请给出正确答案）
[主观题]
The four problems that face the economy of the United States are______.A. unemployment
The four problems that face the economy of the United States are______.
A. unemployment, inflation, financial crisis and trade deficit
B. unemployment, inflation, financial deficit and trade deficit
C. mortgage losses, inflation, financial deficit and trade deficit
D. unemployment, market failures, financial deficit and trade deficit
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