Answer:
1. Food shortage in the USA
2. Food shortage in Britain
3. Food shortage in Soviet Union
Explanation:
 
        
                    
             
        
        
        
Answer:
a.The Greenberg interview provides an insider's view of the Brown vs. Board of Education case; the perspective of the informational article is more distant.
Explanation:
<em>Brown vs. Board of Education</em> is a famous case based on a fight against racial segregation of white and nonwhite kids going to separate schools. Supreme Court decided that education in separate schools is unconstitutional.
<em>Greenberg</em> was one of the lawyers that participated in winning this case against Board of Education. His interview included relevant first-hand information about the case and its participants. Informational article on <em>Thurgood Marshall</em> is based on research and on this interview. So option A is correct. 
 
        
                    
             
        
        
        
Other than a question mark?  I'd have to see the sentence to understand or is this the sentence?