In a group of students, $$\frac{1}{5}$$ are aged below 8 years. Of the remaining $$\frac{2}{5}$$ are above 8 years. What fraction of the students are exactly 8 years of age?

A

$$\frac{12}{25}$$

B

$$\frac{3}{5}$$

C

$$\frac{4}{25}$$

D

$$\frac{2}{5}$$