The 13th Amendment abolished slavery.
The 14th Amendment guaranteed African Americans citizenship rights and promised that the federal government would enforce “equal protection of the laws.”
The 15th Amendment stated that no one could be denied the right to vote based on “race, color or previous condition of servitude.”
Answer: Method of Agreement
Explanation:
In method of agreement,
there's comparison between two or more effects/events in different circumstances to know what they have in common. With this, the researcher would be able to eliminate all variables that are not needed for occurrence of the phenomenon.
A state in China called Manchukuo is the place where Japan established it as a puppet state in 1932. This was made possible when the Japanese army created an excuse to attack the Chines troops in 1931 then on 1932, it was proclaimed as an independent state which was used as their base for expansion to Asia.
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