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 .
What will happen to this property in the long - term with these measures ?
A. The property will not be able to function long - term .
B. The property will be able to sustain itself in terms of water supply .
C. The property will soon fall in to disrepair .
D. The property will be seen as environmentally irresponsible .


B