What Does It Mean If a Researcher Said She Rejected

Multiple Choice

What does it mean if a researcher said she rejected the null hypothesis at the .05 level?

A) There was less than a 5% chance that she would have gotten such an extreme result by chance if the null hypothesis were true.
B) There was more than a 5% chance that she would have gotten such an extreme result by chance if the null hypothesis were true.
C) There is a 5% chance that there is a difference between the two populations she is testing if the null hypothesis were true.
D) There is a 95% chance that the research hypothesis is true.