He can use a certain type of instrument or certain type of academic subject to narrow down the focus of his research.
They enjoyed their time together.
Your answer would be A, hope this helps : D
The correct answer is C; They worked to keep black people and white people apart in many situations.
Further Explanation:
The Jim Crow laws were passed after slavery was abolished and after the Civil War ended. The laws were only passed in the Southern states and they did this so that they could be superior to the black men and women.
Even though slavery was over, with these laws being passed, black people were once again being segregated in the South. They had to ride separate buses, use separate water fountains, attend black only schools, and use black only bathrooms in public. The men in charge did their best to enforce the Jim Crow laws.
Learn more about Jim Crow laws at brainly.com/question/767612
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