a: People who start up their own business typically come from two extreme backgrounds: One is the business family background and the other is a steady professional family background.
b: Typically, people from different backgrounds face different kinds of basic problems.
c: The people from both the backgrounds find it very difficult to establish and manage an enterprise.
d: Starting up and managing a small business is no joke.
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d b c a
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b a c d
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d a c b
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c d a b
C.
d a c b



