The probability distribution of a random variable X is given below:

If $$ E(X)=\frac{263}{15} $$. then $$ P(X<20)$$ is equal to:

A

$$ \frac{8}{15} $$

B

$$ \frac{11}{15} $$

C

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

D

$$ \frac{14}{15} $$