You preform an ANOVA on eighteen subjects divided evenly into three groups according to age. Reading speed is measured and averaged for each of the three groups. The reading speed for the Young Group is 10; for the Middle Group, 12; and for the Older Group, 13. Your F-obtained is 9.15. This is a significant F-obtained. Which of the following is the correct way to report this finding?
A. The Older Group reads significantly faster than any other group.
B. The Young Group reads significantly faster than any other group.
C. There is a significant difference between the Older Group and the Middle Group.
D. There is a significant difference among the reading speeds somewhere.