Definitely C. Diffusion is the process of two cultures melding together, like in Civ V, if you conquer a city, it's not happy until you put your culture into it.
Answer;
-The Tet Offensive
Explanation;
The Tet offensive is the event that marked the turning point in the Vietnam conflict, forcing Lyndon Johnson to change course and pull out of the upcoming presidential race.
-The Tet offensive was a major invasion of South Vietnamese urban centers, that was launched by the North Vietnam in 1968.
-The Tet Offensive played an important role in weakening U.S. public support for the war in Vietnam. The goal of the offensive was to severely damage the United States and South Vietnamese forces as well as encourage an uprising against the government of South Vietnam.
It is Judges
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The Dred Scott decision<span> served as an eye-opener to Northerners who ... to regulate</span>slavery<span> in </span>new territories<span>, these once-skeptics reasoned, ... to the reality instead, that the </span>Supreme Court has made<span> Illinois a </span>slave<span> State. ... </span>did<span> not stop </span>slavery<span> now, they might never again </span>have<span> the chance. </span>