The resources that were traded on the Trans-Saharan trade were salt, slaves, and religion.  The West African countries were trading their gold for salt.  The slaves were sent North and served as slaves or slave concubines.  Islam was spread through the use of the Trans-Saharan trade route.  
        
             
        
        
        
DescriptionThe Thirteenth Amendment to the United States Constitution abolished slavery and involuntary servitude, except as punishment for a crime. In Congress, it was passed by the Senate on April 8, 1864, and by the House on January 31, 1865.
        
                    
             
        
        
        
Answer:
It is a conditional statement that can be written as "If a quadrilateral has exactly one pair of parallel opposite sides,
then it is a trapezoid."
The hypothesis is: a quadrilateral having exactly one pair of parallel opposite sides.
The conclusion is: it is a trapezoid.
Explanation:
The quadrilateral contains 4 slides and the sum of all the internal angles is 360°
Moreover, the quadrilateral has exactly one pair of parallel opposite sides Then we called as a trapezoid 
It is a condition plus hypothesis and the conclusion
hence, the first, second and last options are correct
Therefore All the other options are wrong