If you conduct a one-way analysis of variance and find your between groups effect is significant (i.e. the 'Sig' column on your output have a value less .05), which of the following statements is true?

a. Your largest mean and your smallest mean are significantly different from one another

b. At least one pair of means is statistically different from another one

c. You have a significant effect in your variable of interest

d. All of the above are true