Final answer:
The minimum certification level in LEED is A) Certified.
Step-by-step explanation:
The minimum certification level in LEED (Leadership in Energy and Environmental Design) is Certified.
LEED is a green building certification program which recognizes buildings that are designed, built and operated with sustainability in mind.
The certification process involves meeting certain prerequisites and earning points across various categories such as energy efficiency, water conservation, materials and resources, indoor environmental quality, and innovation.