Answer and Explanation:
The principal thing in life is vitality, without which not a solitary response in the body won't happen. In bioenergetics the responses of digestion i.e catabolism and anabolism will happen in both of the two different ways:  
Endergonic reaction  
furthermore, Exergonic reaction 
In  Endergonic reaction it will require vitality input while in  Exergonic reaction  will give out vitality as warmth/ATP. The significant type of vitality in the free vitality that is accessible type of vitality ∆G.  
At the point when the reaction is endergonic ∆G is certain which indicates vitality in provided that is input and when the reaction is exergonic ∆G is negative meaning that vitality is given out. The magnificence of bioenergetics is the vast majority of the occasions it couples both of these response to get greatest vitality yield (exergonic). Most exergonic response will gives out vitality as ATP which is the vitality money of the cell utilized in the trading of response. Compounds are the impetus which consistently diminishes initiation vitality of the response so happen it suddenly i.e exothermically. T
 
        
             
        
        
        
they can be true, it just depends on the variables of  the ecosystems
        
                    
             
        
        
        
I would say B, because as you can see from the explanation of what a luster is described is. B matches the classifications