An integer is chosen at random from the integers $$1, 2, 3, \ldots, 50$$. The probability that the chosen integer is a multiple of at least one of $$4, 6$$ and $$7$$ is

A

$$\frac{8}{25}$$

B

$$\frac{21}{50}$$

C

$$\frac{9}{50}$$

D

$$\frac{14}{25}$$