The most likely group of documents to support both Indoor Environmental Quality Credit, Thermal Comfort, and Indoor Environmental Quality Credit, Interior Lighting, Option 1. Lighting Control is C, lighting plans, surveys of occupants, sequence of operations.
Lighting plans show the layout and type of lighting fixtures, as well as the lighting controls, such as dimmers, timers, occupancy sensors, or daylight sensors. Surveys of occupants provide feedback on the satisfaction and comfort level of the building users regarding the thermal and lighting conditions. Sequence of operations describes how the mechanical and lighting systems operate and respond to different scenarios, such as occupancy, temperature, or daylight levels.
These documents can demonstrate that the project meets the requirements for both credits, which are:
* For Thermal Comfort, the project must design the HVAC systems and the building envelope to meet the requirements of ASHRAE Standard 55-2010, Thermal Environmental Conditions for Human Occupancy, or a local equivalent, and provide individual thermal comfort controls for at least 50% of the individual occupant spaces, and group thermal comfort controls for all shared multi-occupant spaces1.
* For Interior Lighting, Option 1. Lighting Control, the project must provide individual lighting controls that enable adjustments to suit individual task needs for at least 90% of the individual occupant spaces, and provide lighting system controls for all shared multi-occupant spaces that allow occupants to adjust the lighting to meet group needs and preferences2.
The other groups of documents are less likely to support both credits, because:
* Architectural floor plans, mechanical plans, and lamp specifications do not show the lighting controls or the occupant feedback.
* Photometric plans, mechanical schedules, and lamp specifications do not show the thermal comfort design or the occupant feedback.
* Surveys of occupants, photometric plans, and mechanical schedules do not show the lighting controls or the thermal comfort design.

According to the LEED v4: Building Design + Construction Guide, the Water Efficiency Prerequisite, Indoor Water Use Reduction requires the project to reduce the aggregate water consumption from plumbing fixtures and fittings by at least 20% from the baseline. The baseline water consumption is determined by the Energy Policy Act of 1992 and subsequent rulings by the Department of Energy, or a local equivalent for projects outside the U.S. The plumbing fixtures and fittings that apply to the calculations are toilets, urinals, lavatory faucets (both private and public), showerheads, and kitchen sink faucets1. Pre-rinse spray valves, dishwashers, and commercial kitchen filling operations faucets are not included in the calculations, as they are considered process water uses1. Therefore, the correct answer is C, urinals, public lavatory faucets, kitchen sink faucets. References: LEED v4: Building Design + Construction Guide, Water Efficiency Prerequisite, Indoor Water Use Reduction, Requirements1

An energy meter must be installed for hot water at the main service point for the project to meet the requirements for Energy and Atmosphere Prerequisite, Building-Level Energy Metering. According to the LEED v4 BD+C Reference Guide, this prerequisite requires that "all energy sources used by the building must be metered or submetered" 1. The hot water from the central utility plant is an energy source used by the building, even if it is not directly paid by the office. Therefore, it must be metered at the point where it enters the building. The other options are incorrect because natural gas is not an energy source used by the building in this case, and the flat fee or the ownership of the energy source do not exempt the project from the metering requirement.

For LEED BD+C Materials and Resources (MR) Credit: Building Product Disclosure and Optimization
, teams must prioritize material selection based on environmental and sustainability attributes.
* Including material requirements in project specifications ensures that all contractors, suppliers, and stakeholders follow the necessary sustainability criteria.
* Selecting locally sourced materials (Option B) is beneficial, but it is not the primary focus of this credit.
* Whole-building life-cycle analysis (Option C) is related to a different LEED credit (MR Credit:
Whole-Building Life-Cycle Impact Reduction).
* Procuring materials directly from raw suppliers (Option D) is not a LEED requirement and does not ensure compliance with disclosure and optimization requirements.
Option A is the correct choice because defining sustainability criteria in specifications helps ensure LEED-compliant materials are used throughout the project.
(Source: Official LEED BD+C Reference Manual)

Installing a bioretention area is an example of a low-impact development (LID) practice that can reduce runoff volume and improve water quality by replicating the natural hydrology and water balance of the site.
This approach will contribute to maintaining compliance with Sustainable Sites Credit, Rainwater Management, which requires designing the site to retain the runoff from the developed site for at least the
80th percentile of rainfall events1. References:
* Credit: Rainwater management | U.S. Green Building Council
* Achieving SSc Rainwater Management in LEED v4.1