I’m not sure but I think it’s C dude I kinda remember doing this question.
 
        
                    
             
        
        
        
The basic principles and laws of a nation, state, or social group that determine the powers and duties of the government and guarantee certain rights to the people in it.
        
                    
             
        
        
        
Paper making, the compass, and printing 
Hope I helped :))
        
             
        
        
        
Between april 12,1861 and may 12-13, 1865 in 23 states....
        
             
        
        
        
Answer:
The answer is the availability heuristic.
Explanation:
The availability heuristic is a mental short-cut that takes place when a person relies on immediately available, often recent information to justifiy their ideas or take decisions. In the example, when George notices his new professor was young, he was surprised because the only available information he had about psychology teachers was completely different.
This heuristic may result in poor decision-making and even <u>stereotyping</u>.