(d.) ECONOMIES OF SCALE
Economies of scale is achieved when the average goods and services decrease whereas the volume of the goods and services increases. 
Diseconomies of scale is achieved when the average unit cost of goods and services increases with the increase in the volume of goods and services. 
        
             
        
        
        
Market efficiency is achieved with perfect price discrimination because what would have been dead-weight loss is converted into consumer and producer surplus through perfect price discrimination.
For the market, efficiency is achieved because the dead-weight loss is converted into producer and consumer surpluses, with enormous benefits to the society.
Thus, perfect price discrimination achieves allocation efficiency for both the producer and the consumer (or the society as a whole).
Learn more about market efficiency and price discrimination here: brainly.com/question/10234084
 
        
                    
             
        
        
        
I think may b not sure c is correct
        
                    
             
        
        
        
Answer:
irrelevant
Explanation:
Irrelevant informations are information that are provided but could not solve the problem on ground.
From the above case, I'm looking for a home to buy and cost must not be more than $700,000, instead for my real estate agent to look for home that the cost are lower than or equal to $700,000, rather the agent started sending me fliers containing information of home cost more than $700,000.
 
        
             
        
        
        
Explanation:
Factors that affect food storage:
Temperature: The temperature at which food is stored is very critical to shelf life.
Moisture: It is recommended to remove moisture when storing foods. 
Oxygen: Foods store best when oxygen free.
 
Light: Light, a form of energy that can degrade the food value of foods.
Hope it's helpful to you