Option C. Columbus underwent deep voyages and discovered the present day America. He also discovered the marine route which associated the old Eastern world to the new Western world.
After the establishment of Sea route there was exchange of goods with other countries started. But the negative impact was that people of Eurasia were not healthy with high levels of immunity.  
The interchange of food supplies also initiated the arrival of dangerous diseases too and major part of the European, native American and Asian population died causing shortage of human labor, this gradually lead to the slavery of Africans.  
 
        
                    
             
        
        
        
Answer:
D
Explanation:
When all of the above is an option choose it
 
        
             
        
        
        
Unit 2 Absolutism and Revolution Lesson 5: The French Revolution 
1.) D, the third estate wanted political and social reform
2.) A, a limited monarchy
3.) B, it put into practice ideals of the enlightenment 
4.) C, they were imprisoned and sometimes executed
5.) A, the committee of public safety had absolute power
6.) B, natural rights 
7.) A, it challenged the kings authority 
8.) B, the Declaration of Independence 
9.) B, it was a model for the french constitution of 1791
10.) D, to spread the revolution and destroy other monarchies
11.) C, a five man directorate with a two house elected legislature 
12.) B, to include women in public offices