Questions Are Based on the Following Plots of Cell Means

Multiple Choice

Questions are based on the following plots of cell means. Assume that the within-cell variation is very small.
(1)
(2)
(3)
( 4)
-Which plot(s) indicate(s) significant interaction effects?

A) plots (1) and (2)
B) plots (2) and (3)
C) plots (1) , (2) , and (3)
D) plots (1) and (4)