The GDP expressed in constant, or unchanging prices is called real GDP. 
Real GDP or Real Gross Domestic Product is the measurement of the value of economic output modified for the changes of prices like inflation or deflation.  This modification will transform the measure of the money-value, nominal GDP, into an index intended quantity of total output.
        
                    
             
        
        
        
Answer:
The correct answer is D
Explanation:
Product differentiation is the term which is described as the strategy of marketing which focuses on showing off the differences among the product or the competition and the business.
So, the firm or business who spend the highest percentage of the revenue on advertising the product are the firms which sell the highly differentiated goods.
 
        
             
        
        
        
Im gonna guess tax deduction
        
                    
             
        
        
        
Answer:
 Making decisions and taking actions to achieve a superior fit between the organization and its environment is. strategic management
What is strategic management?
a process that uses vision, goals and objectives, internal, and external analysis, and implementation levers that can be used to help formulate and implement strategy.