The result of a One-Way ANOVA for total stress symptoms among four groups of teachers (pre-k, elementary, middle, high school) wasF(3, 117) = 3.827,p< .05. The corresponding effect size was2= .265. What can be concluded about these results?

Group of answer choices

A) For total stress symptoms, there was not significant difference among groups.

B) For total stress symptoms, there was a significant difference among groups. The effect size was small.

C) For total stress symptoms, there was a significant difference among groups. The effect size was medium.

D) For total stress symptoms, there was a significant difference among groups. The effect size was very large.