The correct answer to this open question is the following.
As your question is so general with no specific reference, we can comment on the following.
According to the organization "Love Is Respect, one of ten students of high school has been hit or slapped by its couple. One in three H.S. students has been a victim of some kind of abuse from its partner. The abuse could have been emotional, verbal, physical, or sexual. And the consequences of these types of aggression last for many years. 
Another terrible number is that in one year, approximately 1.5 million of H.S. students have incidents related to physical violence from its romantic partners. 
These types of violence start when girls are 12 to 18 years old. And from 16 to 24 years, girls experience the most violent conduct from their partners. And all of this has to change because women deserve the utmost respect. 
 
        
             
        
        
        
The court chose Worcestor because it was a peaceful tribe
 
        
             
        
        
        
Dr. Martin Luther King, Jr. was an essential voice in the  civil rights movement because he advocated for peaceful, yet powerful protests that would bring attention to the cause. He was also an incredibly powerful speaker who captivated his listeners. 
        
             
        
        
        
The type of intelligence that allows you to learn to play your first few notes on a saxophone is called fluid intelligence.
 
        
                    
             
        
        
        
Answer:
a central idea is a main point that the other is making.in other words,central idea is what are the article is mostly about.you can think of a central idea as a thesis statement : one sentence that states what the article is about.