Which of the following has fractions in ascending order ?

Answer: Option C

Converting each of the given fractions into decimal form, we get :
$$\frac{2}{3}$$ = 0.66
$$\frac{3}{5}$$ = 0.6
$$\frac{7}{9}$$ = 0.77
$$\frac{9}{11}$$ = 0.81
$$\frac{8}{9}$$ = 0.88
Clearly, 0.6 < 0.66 < 0.77 < 0.81 < 0.88
So, $$\frac{3}{5}$$ < $$\frac{2}{3}$$ < $$\frac{7}{9}$$ < $$\frac{9}{11}$$ < $$\frac{8}{9}$$