The answer is B the invention of balance made trade easier
        
                    
             
        
        
        
The Fair Housing Act of 1968 had little effect on housing segregation because its enforcement mechanisms were very weak.
<h3>What is the significance of the Fair Housing Act?</h3>
The Fair Housing Act came into effect in the United States in the year 1968 with the purpose of eliminating the discriminative practices involved in the sale, rent and/or lease of properties based on races. 
However, the foundation of the Fair Housing Act, 1968 was considered as very weak, because the Civil Rights Act allowed for the public to keep distance from the American minority groups. 
Hence, option B holds true regarding the Fair Housing Act. 
Learn more about Fair Housing Act here:
brainly.com/question/12832875
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Answer:
3, the use of bartering to trade goods instead of money. 
Explanation:
 
        
                    
             
        
        
        
<span>i think is this one  -adoption of a social caste system </span>
        
             
        
        
        
<span>The Twenty-first Amendment (Amendment XXI) to the United States Constitutionrepealed the Eighteenth Amendment to the United States Constitution, which had mandated nationwide Prohibition on alcohol on January 16, 1919. The Twenty-firstAmendment was ratified on December 5, 1933.</span>