For the Data in the Source Table, What Is the Effect

Multiple Choice

For the data in the source table, what is the effect size for this one-way within-groups ANOVA? $$\begin{array} { l | c | c c | c | } \hline \text { Source } & S S & d f & M S & F \\\hline \text { Between-groups } & 39.52 & 2 & 19.76 & \\\hline \text { Subjects } & 6.45 & 5 & 1.29 & \\\hline \text { Within-groups } & 19.93 & 10 & 1.993 & \\\hline \text { Total } & 53 & 17 & & \\\hline\end{array}$$

A) small
B) medium
C) large
D) very large