A. Pure competition 
Pure competition describes a market with a wide range of competing businesses all selling the same product, in this case milk. 
Monopolies are a single company running the market, and oligopoly markets have a small number of players who together control the vast majority. 
 
        
             
        
        
        
I bought an apartment with my boyfriend last year because we had been dating for 4 years and he proposed. In order to prepare, we saved up our money, asked the bank for their opinion on the best coarse of action financially, and we tried to decide how much of our savings we should use without being irresponsible. (This is just an example. I am 15 and will be forever alone but yea this is what I would do anyways)
        
                    
             
        
        
        
Answer:
I think that they MIGHT be A C and D
Explanation:
 
        
             
        
        
        
The technique is called: interclass correlation
Interclass correlation define the connection between two variables that belong to different classes,and commonly used for  countable measurements that made for several groups of subject. Currently, this type of correlations is among the most commonly used by marketing unites to research various information about their products (such as popularity, segmentation, positioning, etc_)
 
        
             
        
        
        
i need more information than this
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