Greenwashing is a term that describes misinformation presented to consumers to portray a product or policy as being more environmentally friendly than it is. Greenwashing can be done by using vague or misleading claims, false labels or certifications, irrelevant or exaggerated benefits, or hidden trade-offs. Greenwashing can deceive consumers into buying products or supporting policies that are not trulygreen, and undermine the credibility and effectiveness of genuine green initiatives1 . References: LEED v4 Green Associate Candidate Handbook1, EPA's Greenwashing

According to the LeadingGreen Study Guide:
"WaterSense is an EPA-sponsored program that promotes and certifies water-efficient products, programs, and practices." TheEnvironmental Protection Agency (EPA)is the correct federal agency.

Per the LEED v4 BD+C Reference Guide, the baseline for energy performance evaluation is based on:
"ANSI/ASHRAE/IESNA Standard 90.1-2010" for most projects under EA Prerequisite: Minimum Energy Performance and EA Credit: Optimize Energy Performance.
This standard sets the minimum energy efficiency requirements for buildings (excluding low-rise residential) and is the benchmark against which a project's proposed design is compared when using the energy simulation modeling method (whole building energy simulation).
* ASHRAE 90.1-2010 defines criteria for HVAC systems, building envelope, service water heating, power, lighting, and other systems affecting energy use.
* LEED requires performance above this baseline to earn points.
The other options are not appropriate baselines:
* A. SMACNA: Refers to HVAC ductwork and air quality guidelines, not energy baseline standards.
* B. ENERGY STAR: Is a benchmarking tool, not a baseline standard used in energy modeling.
* D. ASHRAE 62: Covers ventilation and indoor air quality, not energy performance.
Therefore, the correct baseline standard is ASHRAE 90.1-2010.

Installing new flush valves or flow restrictors is a low-cost strategy to improve water efficiency. These devices reduce the amount of water used in each flush or flow, leading to significant water savings over time.
Other strategies like installing subsurface cisterns to collect stormwater, using only compostable toilets throughout the facility, or incorporating an on-site blackwater treatment system can also improve water efficiency, but they typically involve higher upfront costs. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

LEED BD+C: Multifamily Midrise is the appropriate rating system for residential buildings that are four to eight stories above grade1. Since the project scope includes 60% of the gross floor area, it meets the minimum program requirement of having at least 40%of the gross floor area certified2. The other rating systems are not suitable for this project because they either apply to different building types or heights23.
LEED rating system selection guidance | U.S. Green Building Council2
LEED v4: Building Design + Construction Guide - U.S. Green Building Council3 LEED v4 Rating Systems | USGBC-LI1