The main reason for the latest rise of oil price is ______.

A．warn young people of the hardships that a successful writer has to experience
B．advise young people to give up their idea of becoming a professional writer
C．show young people it's unrealistic for a writer to pursue wealth and fame
D．encourage young people to pursue a writing career

A．He wasn't able to produce a single book.
B．He hadn't seen a change for the better.
C．He wasn't able to have a rest for a whole year.
D．He found his dream would never come true.