Economics is the study of scarcity. Scarcity exists because the society has unlimited needs and wants but the resources to satisfy these are unfortunately, not unlimited. That is why there is a certain cost to scarce things. The scarcer the thing is, the more its costs. Aside from scarcity, factors like production cost and capital affect the cost of a thing, commonly referred to as a good.
        
             
        
        
        
Answer:
The queue discipline indicates the order in which members of the queue are selected for service. Hope this helps
Explanation:
 
        
                    
             
        
        
        
What I feel is more accurate is OPTION D. 
As it mainly depends on personal preferences but internet and television news are bit more popular than radio according to my personal opinion