Consider the Following to Answer the Question(s) Below

Multiple Choice

Consider the following to answer the question(s) below:
Suppose that data on labour productivity and unit labour costs were obtained for the retail industry from 1995 through 2014. A regression was estimated to describe the linear relationship between the two variables.
-What does the plot of residuals suggest?

A) The plot shows curvature. So, the Equal Spread condition is not satisfied.
B) The residual plot has no clear pattern.
C) The Equal Variance assumption is met.
D) All assumption and condition for regression inference appear to be met.
E) As the given residual plot appears generally patternless, we can construct the linear regression model.