Explanation
The Biological Diversity convention, also known as the Convention on Biological Diversity (CBD), was held in Rio de Janeiro, Brazil.
The CBD is an international treaty that was opened for signatures during the United Nations Conference on Environment and Development (UNCED), commonly known as the Earth Summit, held in Rio de Janeiro in 1992. The conference took place from June 3 to 14, 1992.
During the Earth Summit, representatives from various countries gathered to discuss and negotiate global environmental issues, including biodiversity conservation. The Convention on Biological Diversity was one of the major outcomes of the conference and was signed by a significant number of countries as a commitment to conserve biodiversity, ensure its sustainable use, and promote the equitable sharing of benefits arising from the utilization of genetic resources.
Therefore, the correct option is:
C: Rio De Janeiro
