BigShots,Inc $\alpha$ = 005,the Observed F Value Is ___

Multiple Choice

BigShots,Inc.is a specialty e-tailer that operates 87 catalogue websites on the Internet.Kevin Conn,Sales Director,feels that the style (colour scheme,graphics,fonts,etc. ) of a website may affect its sales.He chooses three levels of design style (neon,old world and sophisticated) and randomly assigns six catalogue websites to each design style.Analysis of Kevin's data yielded the following ANOVA table:
Using $\alpha$ = 0.05,the observed F value is ___.

A) 0.5022
B) 0.1333
C) 1.9911
D) 17.5054
E) 22.4567