Who did John Hay negotiate with to establish the Open Door policy?
A)only China and its leaders
B)China and countries outside of the spheres of influence
C)only the countries with spheres of influence
D)China and the countries with spheres of influence
A)only China and its leaders
B)China and countries outside of the spheres of influence
C)only the countries with spheres of influence
D)China and the countries with spheres of influence