What best defines the Open Door Policy? *

A. Permitting any nation to trade in the spheres (area) of others.
B. Not taking sides in a conflict
C. A process by which voters can remove an elected official from office.
D. A policy where people follow thier own independent course in life

A. Permitting any nation to trade in the spheres (area) of others.

The best answer that defines the Open Door Policy is A. Permitting any nation to trade in the spheres (area) of others.