How many credits should the man obtain to get a master’s degree

A. Only the subjects that could be used in society are important.
B. The subjects could be irrelevant so long.
C. There should be more classes on social studies.
D. There should be no exams in subjects of social studies.

A. There will be a foreseeable recovery soon.
B. The conditions will go even harder and tougher.
C. The segment will remain dull for a while.
D. The future of commercial vehicles is unpredictable.