For the given seven values $5, 7, 9, 2, 2, 3, 4$ the five years moving averages are :

5, 4.6, 4

The correct answer is Option (3) → 5, 4.6, 4

Given data: $5, 7, 9, 2, 2, 3, 4$

Year 1-5

Average = $\frac{5+7+9+2+2}{5}=\frac{25}{5}=5$

Year 2-6

Average = $\frac{7+9+2+2+3}{5}=\frac{23}{5}=4.6$

Year 3-7

Average = $\frac{9+2+2+3+4}{5}=\frac{20}{5}=4$