First question would be D because it’s where the land ends !
        
                    
             
        
        
        
Extreme abolitionists did more harm than good because they
tended towards extreme militancy, and with their use of virulent words, the extreme
abolitionists turned off Southerners to their cause. This did more harm than
good, first to the slaves, then also the abolition cause in general.
 
        
             
        
        
        
I believe the answer is  certificate<span> chaining
</span> certificate<span> chaining refers to the process of verification that rely on the usage of more than one authorization.
</span>This process is widely used in corporations to protect the company against potential data theft.
        
                    
             
        
        
        
Answer: I think they still have to sometimes 
Explanation:Answer above