An Outward Shift of a Nation's Production Possibilities Curve

An outward shift of a nation's production possibilities curve

A) ensures the nation of an increase in real GDP per capita.
B) ensures the nation of an increase in real GDP, but not of real GDP per capita.
C) ensures a nation neither of an increase in real GDP nor of an increase in real GDP per capita.
D) ensures a nation of an increase in both real GDP and real GDP per capita.