Movement of Ions Across a Cell Membrane by the Na/K

Movement of ions across a cell membrane by the Na/K ATPase is best described as ________.

A) sodium moved outside to inside, potassium inside to outside
B) sodium moved inside to outside, potassium outside to inside
C) sodium moved inside to outside, potassium inside to outside
D) sodium moved outside to inside, potassium outside to inside
E) none of the above