Answer:
<em>The point at which Marginal Utility of a commodity is Zero and its Total Utility is maximum, it is referred as Point of Satiety</em>
<em>hope</em><em> </em><em>helps~</em>
It says you need to have 1000. Hope it helps, I guess .....
Sorry, but this question is impossible to answer without any background information. Hope this helped :)