Out of the fractions3/5, 7/9, 4/7, 2/3, and 5/8 what is the difference between the largest and smallest fractions ?

A

$$\frac{8}{63}$$

B

$$\frac{19}{63}$$

C

$$\frac{11}{63}$$

D

$$\frac{17}{63}$$

E

None of these