Many European countries had what was referred to as a "Sphere of Influence" in China at this time. So, Secretary of State, John Hay, created an open door policy to allow all countries equal privileges in trade.
I believe the answer would be c
During the early to middle years of the nineteenth century between<span> 1836-1860</span>
<span>He was against the attempted invasion of Pennsylvania. He thought the Army of Northern Virginia should be trying to stop Grant liberating the Mississippi. </span>