From the passage we may infer that the author is most probably ______.

A．his brilliance
B．his diligence
C．his precaution
D．his pragmatism

A．is basically a self-taught occupation and no instructions on how to deal with it are of any practical use
B．is a "trial and error" process and it does not count whether you have the gift for writing or not
C．for a living is the most difficult and risky of all careers, full of frustration and discouragement
D．sometimes provides good hopes of winning public praise and escaping humiliating poverty