The Figure Below Shows the Aggregate Demand and Supply Curves

Multiple Choice

The figure below shows the aggregate demand and supply curves for the U.S.A rightward shift of the aggregate supply curve from AS to AS' would be caused by:​ ​
Figure 5.4
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A) an increase in resource prices,improved technology,or an extension of patent protection.
B) a decrease in resource prices,improved technology,or an extension of patent protection.
C) a decrease in resource prices,improved technology,or a shortening of patent protection.
D) an appreciation of the dollar,higher inflation in Europe,or a decrease in resource prices.
E) a depreciation of the dollar,higher inflation in Asia,or improved technology.