it must be once a bear has decided to attack however nothing can be done. 
because if a bear attacks you fall to the ground roll up like a ball and cover you neck and head. 
 
        
             
        
        
        
I believe the answer is 1, allows the reader to approximate the meaning of an unknown word.
        
             
        
        
        
"What is an epigram? A dwarfish whole, ITS body brevity, and wit ITS soul."