The answer is B :) hope that helps 
 
        
             
        
        
        
depends what are you doing contemporary. decision are affected by numerous factor, like time, circumstances, family background, peer pressure, ambition, poverty, social status etc. specifically, in my case i look into the bigger picture of how the job i am going to select will serve my ambition along with my family and clan needs. similarly, am i of a little help to humanity or am i contributing something positive for the society, if the answer is yes, then i wont look back over the decision i made. as mentioned above those factors were kept in mind while choosing or making the decision. however, if things does not go as, i or you planned then the lesson is learnt of not going to make same mistakes again.
 
        
             
        
        
        
A book that is about a house on a prarie
        
                    
             
        
        
        
“it should be clear to all of us” is persuasive in a way where he makes everyone else sounds wrong if they believe otherwise.