well A and C both happened in the 80's but B was in the 70's.. So someone made the choices unreliable. But the best answer would be 
<u>D.) All of the above.</u>
 
        
                    
             
        
        
        
The correct answer to this open question is the following.
The United Farm Workers' grape boycott that began in 1966 affected the country in that it was carried out nationwide. American people supported the workers and stopped consuming grapes in the United States. The also called Delano Grape Strike that started in September 1965 was organized by Mexican-American workers and Philipino-American workers. They demanded better working conditions and fair wages. In the end, workers received some benefits such as better salaries and health-care benefits. 
 
        
                    
             
        
        
        
Answer:
I think it was a very close race, that's all i'm about to say before the government comes for me.
 
        
                    
             
        
        
        
"Ulysses S. Grant became a colonel in the Union volunteer army. His first victory was when he captured Fort Henry and Fort Donelson in February 1862. Also this man opened two rivers, and received national recognition for victories in February 1862, the first major Union victories of the war."