Answer:
Gunpowder
Explanation:I think it is gunpowder because they had gunpowder in the west for fighting of Indians
 
        
             
        
        
        
The right answer for the question that is being asked and shown above is that: "C. The successes of the U.S. nuclear program."  Pres. Truman believe that political change would come to the Soviet Union because the <span>successes of the U.S. nuclear program</span>
        
             
        
        
        
Rroughly half to 60% can speak it well enough to hold a basic conversation