Some people believe that "King John" was written by Shakespeare, but some people it might be written by an （）author.

A. Ferrari was the only way that helped businessmen beat a midlife crisis before.
B. Buying guitars becomes another effective way to stave over a middle crisis.
C. Guitars have gained a renewal because the young people purchased a lot.
D. Mr. Moorhouse relocated his business because he intended to make more money.

A. of which
B. for what
C. as
D. whose