Read the following context and choose the best option to answer the question.
Context: Rainwater from the roof is collected and funneled into a 25,000 gallon underground cistern . Wastewater from showers , sinks and toilets goes into underground purifying tanks and then into the cistern . The collected water then irrigates the land surrounding the house . Surrounding flowers and shrubs native to the area enable the property to blend into the surrounding rural landscape .
Question: What will happen to this property in the long - term with these measures ?
Options: 
- The property will not be able to function long - term .
 - The property will be able to sustain itself in terms of water supply .
 - The property will soon fall in to disrepair .
 - The property will be seen as environmentally irresponsible .


The property will be able to sustain itself in terms of water supply .