If the Cell Means of a Factorial Design Study Are

Multiple Choice

If the cell means of a factorial design study are graphed,and the pattern of bars in one section of the graph is different from the pattern in the other section,the pattern indicates that

A) marginal means should also be plotted.
B) there are more participants in one of the conditions.
C) there is an interaction effect.
D) a rounding error was made or the means were plotted improperly on the graph.