Final answer:
Cradle to Cradle v3 Gold certified products are valued at 100% for the MRc Building Product Disclosure and Optimization - Material Ingredients, Option 2, indicating a complete disclosure and optimization of ingredients.
Step-by-step explanation:
Cradle to Cradle v3 Gold certified products are valued at 100% for MRc Building Product Disclosure and Optimization - Material Ingredients, Option 2. This rating system encourages the use of products that have fully disclosed ingredients and demonstrate optimization of those ingredients. The Cradle to Cradle certification is a multi-attribute eco-label that assesses a product's safety to humans and the environment and design for future life cycles.