These strategies are core components ofLow Impact Development (LID)andgreen infrastructureapproaches for rainwater management:
"LID emphasizes... minimizing land disturbance, preserving vegetation, minimizing impervious cover..." These help reduce runoff volume and replicate the site's natural hydrology, improving rainwater management.

The conventional building process stages can vary depending on the type, size, and complexity of the project, but a general overview can be found in this article. According to the article, the stages are:
* Planning: This is the stage where the project idea is conceived, the feasibility and budget are assessed, the design and engineering are developed, the permits and approvals are obtained, and the contractors and subcontractors are hired. This stage involves various disciplined practitioners on project teams, such as architects, engineers, surveyors, estimators, project managers, and lawyers.
* Sitework and foundation: This is the stage where the project site is prepared, the utilities are connected, the excavation and grading are done, and the foundation is laid. This stage involves mainly civil engineers, site workers, foundation contractors, and building inspectors.
* Rough framing: This is the stage where the structural components of the building are erected, such as walls, floors, roofs, stairs, and windows. This stage involves mainly carpenters, framers, roofers, and window installers.
* Exterior construction: This is the stage where the exterior finishes of the building are applied, such as siding, brickwork, stucco, insulation, doors, and landscaping. This stage involves mainly exterior contractors, painters, landscapers, and door installers.
* MEP (Mechanical, Electrical, Plumbing): This is the stage where the mechanical systems of the building are installed and tested, such as heating, ventilation, air conditioning (HVAC), plumbing, electrical wiring, lighting fixtures, fire alarms, and security systems. This stage involves mainly mechanical engineers, electricians, plumbers, HVAC technicians, and fire protection specialists.
* Finishes and fixtures: This is the final stage where the interior finishes of the building are applied, such as drywall, flooring, cabinets, countertops, appliances, furniture, and accessories. This stage involves mainly interior designers, drywallers, flooring installers, cabinet makers, countertop installers, appliance installers, and furniture movers.
As you can see from this overview, each disciplined practitioner on project teams is involved in different stages of the conventional buildingprocess, depending on their expertise and role. However, they are also required to collaborate and coordinate with each other throughout the design process, which spans from the planning stage to the finishes and fixtures stage. The design process is an iterative and interactive process that involves creating, reviewing, and refining the design plans and specifications to meet the project goals and requirements1. Therefore, the answer is D. As required during design process.
Building a House Step by Step: A Guide From Start to Finish
What Is Disciplined Agile? - Project Management Institute

An integrative design process is a collaborative and holistic approach that involves the project team and stakeholders from the early stages of the project to identify the project goals, analyze the site and climate conditions, explore multiple design options, and optimize the performance and cost-effectiveness of the project. By applying an integrative design process, a LEED project can achieve higherlevels of sustainability and efficiency, as well as reduce the risks of errors, delays, and change orders12. References: LEED v4 Green Associate Candidate Handbook1, LEED v4 BD+C Reference Guide2

Submetering systems are devices that measure the water consumption of specific building components, such as cooling towers, irrigation systems, process water systems, or tenant spaces. They allow the facility operator to monitor and optimize the water use of different systems and identify any leaks or inefficiencies12. Submetering systems are also required for some LEED credits, such as Water Metering and Cooling Tower Water Use3.
How LEED Guides Users to Water Efficiency - Facilitiesnet1
Optimize Process Water Use | U.S. Green Building Council2
LEED Certification Tips: Water Efficiency | Buildings4

The LEED rating system is designed to address the most important environmental impacts and human benefits of green building. The impact categories are based on the U.S. Environmental Protection Agency's TRACI method (Tool for the Reduction and Assessment of Chemical and Other Environmental Impacts), which evaluates the potential environmental effects of a product or process over its life cycle. The impact categories are: reverse contribution to global climate change; enhance individual human health and well- being; protect and restore water resources; protect, enhance and restore biodiversity and ecosystem services; promote sustainable and regenerative material cycles; build a greener economy; enhance social equity, environmental justice, community health and quality of life. Among these categories, reducing contribution to climate change and enhancing human health and well-being have been identified as the most important ones for a LEED project to accomplish. References: LEED v4 Green Associate Candidate Handbook, LEED v4 BD+C Reference Guide