A greenhouse has air exchange q$=15$m$^3/$d$.$ The incoming air has water vapor content of $12\mathrm{.}8$kg$/$m$^3.$ Within the greenhouse, the soils and plants contain $98$kg of water total. Irrigation water is added to the greenhouse at I $=650$ kg$/$d$.$ If the volume of air in the greenhouse is $500$m$^3,$ what is the water vapor content of the air leaving the greenhouse? Fans in the greenhouse fully circulate the air in the greenhouse. Air flows in and out of the greenhouse at the same rate. Simplify by assuming steady state conditions.

A$.12\mathrm{.}9$ kg$/$m$^3$

B$.55\mathrm{.}9$kg$/$m$^3$

C$.56\mathrm{.}1$ kg$/$m$^3$

d$.65\mathrm{.}8$kg $/$ m$^3$