When We Have Two Data Sets That Reveal 95% Confidence

When we have two data sets that reveal 95% confidence intervals that differ from a hypothesized value and don't overlap, what conclusion can we make?

A) Although these groups differ from the hypothesized value, they don't differ from one another.
B) These groups are not significantly different from one another.
C) These groups are significantly different from one another.
D) We lack good evidence to decide whether these groups are significantly different from one another or not.