Opponents of the Civil Rights Act of 1964 inserted the prohibition against in employment in hopes of preventing its passage, thinking that such discrimination was acceptable and that many others agreed with them.

Explanation:

The civil rights Act of 1964 was important civil rights and labour law that outlawed the discrimination based on colour, race, national origin and religion. It also prohibited the racial segregation in public accommodations, employments and schools.  

This legislation was proposed by president John F. Kennedy but he died in November 22, 1963. After him Lyndon Johnson introduced the bill  and got passed by Lyndon B. Johnson and gt passed in senate by 73-27. and by 289-126 in the House.  It was signed into law by Lyndon Johnson on July 2, 1964.

okay but whats the question.

explanation:

when studying cause and effect, historians usually group the causes into different categories. for example, cultural causes reflect how a society’s literature and art convey the way the society saw itself in relation to the rest of the world. another resource that historians use to understand society is pop culture, which tells them the trends and ideas that are preferred by the common people. when studying cause and effect, it’s important to remember multiple causation, or the idea that an effect could have several causes and vice versa.  

the correct option is “cultural causes” since art and literature are related to the culture of a place. culture is determined by literature, art, music.

the correct option is “pop culture” since it reflects the likes and ideas of common people whereas the rest of the options do not focus on common people.  

the correct option is “multiple causation” since it refers to the idea that events are caused by multiple reasons, not just a single one.