The Egyptians also traded with Nubia in the south. Hope this helps you. :D
        
                    
             
        
        
        
Answer:
 B) incremental 
Explanation:
Incremental means gradual, and here it says "bit by bit. " The other options don´t make any sense. 
 
        
             
        
        
        
C would be the least powerful, as the speaker's uncle is not acclaimed on the subject of HIV at all. 
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Answer: crystallized intelligence
Crystallized intelligence accesses the long-term memory in order to use relevant knowledge, skills and experiences to solve a problem or complete a task. It is not memory, it only applies aspects of the memory.