Data Set 14-3: Each of the Following Represent Data for a Chi

Data Set 14-3: Each of the following represent data for a chi square test of independence. $\begin{array}{llllllllll}\mathrm{W} & \mathrm{X} & \mathrm{Y} & \mathrm{Z}\\1 \quad 29 & 1\quad 4 & 1 \quad 12 \quad 10 & 16 \quad18 \quad 27\\29 \quad 30 & 4 \quad 10 & 10 \quad 16 \quad21 & 39 \quad 42 \quad 50\\&&9\quad 13 \quad 18&\end{array}$
-In Data Set 14-3, the problem with the smallest expected frequency cell is

A) W
B) X
C) Y
D) all of the other alternatives are correct have one cell that is equally small.