I am not sure this is a question, it is a statement. 
        
                    
             
        
        
        
Guinea-Bissau, Angola, and Mozambique gained independence from Portugal.The Soviet Union and the Soviet Bloc broke apart.
        
             
        
        
        
Many Jews were killed or tortured.  Many were also accused of being wizards, witches, and heretics.  During the Inquisition, many Jews were torture and killed.
        
             
        
        
        
Answer: FEDERAL INCOME TAX
Explanation:
The most likely tax that follows the principle that states that people should pay based on their ability is the federal income tax. This tax is progressive as the high income earners pay a higher percentage as tax when compared to he low income earners.
The sales tax and doctors license fees aren't progressive, as the rich and the poor all pay same amount. This doesn't align with the principle.