If a dilute solution of aqueous $$\mathrm{NH_3}$$ is saturated with $$\mathrm{H_2S}$$, then the product formed is

A

$$(\mathrm{NH_4})_2\mathrm S$$

B

$$\mathrm{NH_4HS}$$

C

$$(\mathrm{NH_4})_2\mathrm S_x$$

D

$$\mathrm{NH_4OH+S}$$