Nowadays people value heroes are valued for their bravery such as speaking up for someone, going to war and working in the police department or saving lives as a doctor or a fireman. However, this is only peoples public opinion because there are other works of heroism. A person that cares for many people and is kind Can sometimes be someone’s saving. 
Hope this helps :)
 
        
             
        
        
        
To me it seems like it's 2 but if I'm wrong sorry
        
                    
             
        
        
        
I believe the answer is evidence