| 1. B is kind of the best answer. 
 2. "something special" matches "exclusivity" which is expressed in B. 
 3. Option C is really a trap, which may lead you to connect 'premium' with 'good quality';     
     however, quality are not mentioned in the context. 
 4. In B, there are two key words which need to clear: one is 'maintenance' which means  
     keep or retain rather than repair or fix; the other is 'aura' that means feeling or  
    characteristic of a person.  
 5. The reason why i thought B is 'kind of'' the best one is:  
    the author attempted to link/equalize/correlate 'Mass-marketing techniques and price- 
    reduction strategies' with  'continued sale' but marketing knowledge could tell us these 
    two are not necessarily always the same trend. 
 6. i may misunderstand 'continued sale'. Any comments are welcomed, particularly from  
     those comrades who are marketing expertises, which would help all of us clarify on this 
    point.  |