If the numerator of a fraction is increased by 2 and the denominator is increased by 3, the fraction becomes $$\frac{7}{9}$$ and if both the numerator as well as the denominator are increased by 1, the fraction betomes $$\frac{4}{5}$$. What is the original fraction?

A

$$\frac{19}{24}$$

B

$$\frac{9}{11}$$

C

$$\frac{13}{16}$$

D

$$\frac{17}{21}$$