Answer:  D. Sections of recitative, aria, and chorus flow smoothly from one section to the next.
Explanation: That would be the only reasonable answer. 
 
        
             
        
        
        
Answer:
"Andrew Lloyd Webber. Net Worth: $1.28 Billion".
 
        
                    
             
        
        
        
"of the time" refers to the attempt of the artists to create an art piece that would reflect the contemproary culture.
Explanation:
Minimalist art forms refer to the use of either single or repeated patterns (mostly geometrical) in the creation of modern art piece.
The use of the term “of the time” refers to the activity of minimalist artist like Donald Judd to make an art of contemporary times. This was done by using the material which was at use contemporarily along with contemproary practises.
Donald Judd used to belong to the industrial or machine culture where most of the things were machine-made and not made by the artist himself rather industrial workers, hence he used bronze in the form of thin machine-made sheets which conformed to the machine culture.
These minimalistic art pieces later influenced the development of modern skyscrapers and many design firms.
 
        
                    
             
        
        
        
Answer:
Marketing knowledge.
Explanation:
Marketing traditionally refers to all activities that a company performs to promote the sale of products or services. Traditionally, marketing has been seen as the totality of all activities aimed at promoting the exchange of products or services together with the sales department.  
Today, in most developed economies, consumer needs play a more important role than the presence of surplus supply. Marketing has thus become a pre-eminent discipline in which identifying needs has become central. Therefore, all professionals who want to maximize their sales should have knowledge of this discipline, in order to cover most of their clients' needs.