The Table Below Gives Beverage Preferences for Random Samples of Teens

Multiple Choice

The table below gives beverage preferences for random samples of teens and adults. $$\begin{array} { l l l l } & \text { Teens } & \text { Adults } & \text { Total } \\\text { Coffee } & 50 & 200 & 250 \\\text { Tea } & 100 & 150 & 250 \\\text { Soft Drink } & 200 & 200 & 400 \\\text { Other } & 50 & 50 & 100 \\& 400 & 600 & 1000\end{array}$$ We are asked to test for independence between age (i.e., adult and teen) and drink preferences.With a .05 level of significance, the critical value for the test is

A) 5.991.
B) 7.815.
C) 14.067.
D) 15.507.