The development discussed in the passage is primarily a problem of______.

A．discuss a problem and propose a solution
B．analyze a system and defend it
C．present both sides of an issue and allow the reader to draw a conclusion
D．outline a new idea and criticize it

A．mistake literature as of little or no practical value
B．attach great importance to social sciences and humanities
C．can distinguish primary problems from secondary problems
D．do not offer undergraduate courses like history, literature and philosophy