It’s actually C 
Crazy right?
        
             
        
        
        
<span>Lincoln was the tool to reconnect the North and South of the US, there was a ten percent plan for the south in order for them to be allowed back in the Union once ten percent of their legal voters swore their allegiance to the US, Johnson was a firm believer that African Americans held no place in reconstruction and that he granted free hand as well as local affairs, and finally the North decided to turn on Johnson because of how he chose to deal with the southern states government.</span>
        
             
        
        
        
Answer:
Containment Policy
Explanation:
Under the policy of containment, developed at the beginning of the Cold War, the United States' primary foreign policy goal was to stop the spread of Soviet influenced communism.
Vietnam was, as its core, a war to stop communism from spreading.