In which situation is policy strengthened? Check all correct answers Each choice is worth 1 point, which you will receive if you correctly either check or do not check the choice多项选择题

A

Fiscal policy in an open economy with a floating exchange rate.

B

Monetary policy in an open economy with a fixed exchange rate.

C

Fiscal policy in an open economy with a fixed exchange rate.

D

Monetary policy in an open economy with a floating exchange rate.

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