Refer to the Following Partial ANOVA Results from Excel (Some

Multiple Choice

Refer to the following partial ANOVA results from Excel (some information is missing) . $$\begin{array} { | l | c | c | c | c | } \hline \text { Source of Variation } & S S & \text { df } & M S & F \\\hline \text { Between groups } & & & 210.2778 & \\\hline \text { Within groups } & 1483 & & 74.15 & \\\hline \text { Total } & 2113.833 & & & \\\hline\end{array}$$ Degrees of freedom for the F-test are:

A) 5, 22.
B) 4, 21.
C) 3, 20.
D) impossible to determine.