The correct answer is option 1, Convention on Biological Diversity. The Rio Summit, also known as the Earth Summit, was a major conference held in Rio de Janeiro in 1992. It brought together world leaders to discuss environmental issues and sustainable development. One of the key outcomes of the summit was the adoption of the Convention on Biological Diversity. This international treaty aims to promote the conservation and sustainable use of biodiversity, as well as the fair and equitable sharing of benefits arising from its utilization. It recognizes the crucial role that biodiversity plays in maintaining ecosystem services and supports efforts to protect and restore biodiversity at different levels, from local to global. It also addresses issues such as access to genetic resources and the sharing of benefits derived from their use.