A Walker Walks 30 M from the Origin Toward the EAST

A walker walks 30 m from the origin toward the EAST to point A. She then walks from point A 20 m more toward the EAST to point B. The walker's total displacement from the origin is

A) 50 m toward the EAST.
B) 30 m toward the WEST.
C) 20 m toward the WEST.
D) 10 m toward the EAST.
E) 10 m toward the WEST.