The Following Table Shows the Results of a Two-Factor Analysis

The following table shows the results of a two-factor analysis of variance with two levels of factor A,three levels of factor B,and a separate sample of n = 5 participants in each of the treatment conditions.Note that several values are missing in the table.What is the missing value for the F-ratio for the A x B interaction? $$\begin{array} { c c c c c } \text { Source } & \text { SS } & d f & M S & \\\text { Between } & 80 & \mathrm { xx } & & \\\text { A } & 8 & \mathrm { xx } & \mathrm { xx } & F = x x \\\text { B } & \mathrm { xx } & \mathrm { xx } & 20 & F = x x \\\text { Ax B } & \mathrm { xx } & \mathrm { xx } & \mathrm { xx } & \mathrm { F } = \mathrm { xx } \\\text { Within } & \mathrm { xx } & \mathrm { x } & \mathrm { xx } & \\\text { Total } & 76 & \mathrm { xx } & & \\\hline\end{array}$$

A) ?2
B) ?4
C) ?8
D) ?16