Of the History CLEP choices, which is generally the fastest/easiest study/pass?

[Peach]

Good morning,

I need to finish the current marketing class that I'm taking, and take/pass a History CLEP before mid June, and then I'll finally be done with my Bachelor Degree. If anyone out there has taken any of the below CLEPs, or especially if you've taken more than one of the below, can you provide your perspective and feedback on which you felt was the quickest prep that would lead to the highest liklihood of passing?

U.S. History I: Early Colonizations to 1877 v2
U.S. History II: 1865 to the Present v2
Western Civilization I: Ancient Near East to 1648 v2
Western Civilization II: 1648 to the Present v2

Thanks so much,
Peach