Selling Price and Amount Spent Advertising Were Entered into a Multiple

Multiple Choice

Selling price and amount spent advertising were entered into a multiple regression to determine what affects flat panel LCD TV sales.The plot of residuals versus predicted values is shown below.What does the residual plot suggest?

A) The Linearity condition is not satisfied.
B) There is an extreme departure from normality.
C) The variance is not constant.
D) The presence of a couple of outliers.
E) The plot thickens from left to right.