B Leland Stanford or perhaps c but I'm pretty sure B
Monroe Doctrine because its a new american policy.
The Hundred Days Offensive Jul–Nov 1918 was the costliest
The Ludendorff offensive other wise known as the spring offensive was a German offensive on the Western Front intended to win the war before the American troops that had begun arriving in France could fully deploy.
I'm unsure of how far they advanced
Kaiserschlacht was the last German offensive and was a series of German attacks along the Western Front.
Answer:
compares:
they both lived in america around some point
they are both human
and they both did trade with each other
the contrast is that we had guns. they had bows. they also had a different skin color. and native americans as far as my knowledge goes where always in america while europeans came from europe. we also took them as slaves. not the other way around
I think that the answer is C