A story from www.ft.com (1/31/2005) describing Ireland's transformation to a prosperous economy ...

A story from www.ft.com (1/31/2005) describing Ireland's transformation to a  prosperous economy noted that "Ireland's story is unique: a small, English-speaking, non-industrialised country on the edge of Europe was able to secure structural funds from the EU, cut taxes, deregulate faster than its neighbours and attract lots of foreign companies in the process."
If the natural rate of unemployment in Ireland decreased as a result of these policies, then ________ would shift ________.
A) only the long-run Phillips curve; leftward
B) only the short-run Phillips curve; rightward
C) the long-run and short-run Phillips curves; leftward
D) the long-run and short-run Phillips curves; rightward