If X2 is a binary predictor in Y = β0 + β1X1 + β2X2, then which statement is most nearly correct?
A. X2 = 1 should represent the most desirable condition.
B. X2 would be a significant predictor if β2 = 423.72.
C. X2 = 0, X2 = 1, X2 = 2 would be appropriate if three categories exist.
D. X2 will shift the estimated equation either by 0 units or by β2 units.
