A lack of corroboration indicates that
A. supporting documents are difficult to find.
B. the author isn't considered to be an expert in his field.
C. the subject is complex and difficult to understand.
D. no other sources present the same information or point of view.

Question

A lack of corroboration indicates that 
A. supporting documents are difficult to find. 
B. the author isn't considered to be an expert in his field. 
C. the subject is complex and difficult to understand. 
D. no other sources present the same information or point of view.

adll23 · Answer

A lack of corroboration means D. No other sources present the same information or point of view."