The Average Income of Actresses May Not Be Indicative of an Aspiring

The average income of actresses may not be indicative of an aspiring actress's expected earnings because:

A) there is a very narrow range of incomes among actresses.
B) only a few actresses have much talent.
C) the few actresses who do not succeed skew the average income much lower than would be expected of most actresses.
D) a few superstars with extremely high earnings may skew the average income much higher than all but a few can hope to earn.