Let the mean and variance of 7 observations 2, 4, 10, x, 12, 14, y, x >  y, be 8 and 16 respectively. Two numbers are chosen from {1, 2, 3, x - 4,y,5} one after an other without replacement, then the probability, that the smaller number among the two chosen numbers is less than 4, is :

A

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

B

$$\frac{1}{3}$$

C

$$\frac{4}{5}$$

D

$$\frac{2}{5}$$