When three groups were compared using the one-way Analysis of Variance (ANOVA), the result turned out to be significant, that is, the null hypothesis was rejected. What will be the appropriate...

 When three groups were compared using the one-way Analysis of Variance (ANOVA), the result turned out to be significant, that is, the null hypothesis was rejected. What will be the appropriate interpretation of this result?
A. All three groups significantly differ in means.
B. Exactly two of the three groups significantly differ.
C. At least two of the three groups significantly differ in means.
D. All three groups have the same effect on the dependent variable.