Which of the Following Are the Degrees of Freedom Used $\begin{array}{|l|l|}\hline \text { A. } & 8 \\\hline \text { B. } & 5 \\\hline \text { C. } & 4 \\\hline \text { D. } & 3 \\\hline\end{array}$

Which of the following are the degrees of freedom used in a Chi-squared test of independence between gender and mode of transport to university, if the mode of transport choices are public transport, car, bicycle or other. $\begin{array}{|l|l|}\hline \text { A. } & 8 \\\hline \text { B. } & 5 \\\hline \text { C. } & 4 \\\hline \text { D. } & 3 \\\hline\end{array}$