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 .
Why is rainwater being collected and moved into the cistern ?
Pick the best answer from the following options:
A. The facility is trying to be more wasteful with resources .
B. The facility is trying to be carbon - neutral .
C. None of the above choices .
D. The facility is trying to commercialize rain water .


B