Here Is an Excel ANOVA Table for an Experiment That

Multiple Choice

Here is an Excel ANOVA table for an experiment that analyzed two factors that may affect patients' blood pressure (some information is missing) . $$\begin{array} { | l | c | c | c | c | c | } \hline \text { Source of Variation } & S S & d f & M S & F & \text { P-value } \\\hline \text { Medication type } & 16.5313 & 1 & 16.5313 & 9.173 & 0.006 \\\hline \text { Patient age group } & 25.0938 & & 8.3646 & 4.642 & 0.011 \\\hline \text { Interaction } & 1.8438 & 3 & 0.6146 & 0.341 & 0.796 \\\hline \text { Error } & 43.2504 & 24 & 1.8021 & & \\\hline & & & & & \\\hline \text { Total } & 86.7192 & & & & \\\hline\end{array}$$ The overall sample size is:

A) 7.
B) 25.
C) 32.
D) impossible to determine as given.