Data Set 14-2: a College Student Was Interested in the Relationship

Data Set 14-2: A college student was interested in the relationship between handedness and academic ability. She classified her sample two ways: left- or right-handed and top or bottom half of the class.
-Which conclusion is correct if the null hypothesis is rejected for Data Set 14-2?

A) the data are most likely invalid because there were probably more right- than left-handed students
B) handedness and academic ability are not related to each other
C) handedness and academic ability are related to each other
D) none of the other alternatives are correct