Answer:
C. Trench warfare
Explanation:
A's incorrect as alliances have existed for thousands of years
B's incorrect as an infantry charge's greatest weakness is the machine gun for obvious reasons
D's incorrect as both sides had machine guns, and was not the reason for victory.
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This leaves C, which makes sense as troops would be forced to hide on lower ground due to the deadliness of machine guns
 
        
             
        
        
        
Answer: African Americans deserve equal treatment and status in American Society.
        
             
        
        
        
A scientific argument is when it had more examples of that certain argument. What I’m saying is that scientific arguments have more details and more evidence to why that answer is wrong or right. Regular arguments is when it is less detailed and just making predictions and theoretical analysis. (Hope this helps)