Which of the Following Violates the Assumptions of the One-Way $\chi^{2}$

Multiple Choice

Which of the following violates the assumptions of the one-way $\chi^{2}$ ?

A) The independent variable is a categorical or nominal variable.
B) Each subject is measured in every category.
C) The computations are based on the responses of all subjects in the study.
D) The $f_{e}$ in any category is equal to 5 or more.