In the Example of Ireland Described in the Text, the Country's

Multiple Choice

In the example of Ireland described in the text, the country's production set shifted outward over time because:

A) of technological advancements which improved its potato cultivation and overall agricultural production.
B) it gained new resources over time which enabled it to specialize and gain comparative advantage in software trade with the U.S.and Europe.
C) of new resources which allowed it to gain absolute advantage over many of its trading partners.
D) of reduction in trade barriers with the European Union.