Step 1: Understanding the Concept:
Modern sustainable architecture prioritizes water self-sufficiency and reducing demand on municipal supply.
Step 2: Detailed Explanation:
Rainwater harvesting involves catching runoff from roofs or other impervious surfaces and storing it in tanks or ponds for immediate use.
(A) Water recycling usually refers to treating greywater or sewage for non-potable use.
(C) Groundwater recharge is the specific process of redirecting water into the ground to replenish aquifers.
Step 3: Final Answer:
The correct term is Rainwater harvesting.