Using the Following Information from a One-Way ANOVA, in the Student-Newman-Keuls

Using the following information from a one-way ANOVA, in the Student-Newman-Keuls procedure, what value would be multiplied by the appropriate q value?
Group 1 mean = 45 n = 10
Group 2 mean = 40 n = 10
Group 3 mean = 35 n = 10
Group 4 mean = 30 n = 10
Group 5 mean = 25 n = 10
$\begin{array}{|l|l|l|l|l|}\hline \text { Source of Variation } & \text { SS } & \text { df } & \text { MS } & \text { F } \\\hline \text { Between } & 2400 & & & \\\hline \text { Within } & 9000 & & & \\\hline\end{array}$

A) 3.00
B) 3.74
C) 4.47
D) 7.74