Answer:
Why was Sub-Saharan Africa chosen as the location for this trial? Sub-Saharan Africa is chosen for these trials because 22 million people have HIV out of the 30 million total people that have HIV making up about 70%, and due to it being a developing country the trials are help to less ethical practice.
Explanation:
 
        
             
        
        
        
The answer would be D or 4. He often incorporated letters and numbers into his paintings. 
        
                    
             
        
        
        
D. All of the other answer choices are actual kingdoms of ancient Egypt.