Using the Following One-Way ANOVA Summary Table, How Many Levels

Using the following one-way ANOVA summary table, how many levels of the independent variable were in this study? $\begin{array}{|l|l|l|l|l|l|}\hline \text { Source of variation } & \text { SS } & \text { df } & \text { MS } & \text { F } & \text { P } \\\hline \text { Between } & 200 & 4 & \text { B } & \text { D } & .01 \\\hline \text { Within } & \text { A } & 80 & \text { C } & & \\\hline \text { Total } & 1000 & & & & \\\hline\end{array}$

A) 4
B) 5
C) 3
D) Cannot determine