Josie Has Two Classes: English and Math

Josie has two classes: English and math.She finds out that the grades for both classes has improved without spending more time studying.Using the production possibilities curve,Josie's situation can be represented by

A) moving from a point on the production possibilities curve to a point inside the curve.
B) a movement along the curve from the axis for English to the axis for math.
C) a movement along the curve from the axis for math to the axis for English.
D) an inward shift of the curve.
E) an outward shift of the curve.