i picked b, but why is it wrong?

International sporting events need not be fiscal disasters, the financial success of the 1992 Olympic Games demonstrates that fact.

(A) the financial success of the 1992 Olympic Games demonstrates that fact
(B) for example, the 1992 Olympic Games were financially successful
(C) like the financial success of the 1992 Olympic Games demonstrates
(D) a fact demonstrated by the 1992 Olympic Games, which were financially successful
(E) as the financial success of the 1992 Olympic Games demonstrates

oae