Final answer:
The correct answer to the student's question is 'D) using biodiversity in a sustainable manner.' The Convention on Biological Diversity aims for sustainable use, equitable benefit sharing, and biodiversity conservation through legislation, protecting areas, and habitat restoration.
Step-by-step explanation:
The Convention on Biological Diversity (CBD) is focused on conservation of biodiversity through various means, which include legislative frameworks such as CITES to protect endangered species, setting aside protected areas, and habitat restoration. The goal of the CBD is to use biodiversity in a sustainable manner, which directly targets one of the options from the question, namely, using biodiversity sustainably (D).
It acknowledges that strategies should balance economic development and biodiversity conservation, while also ensuring that the benefits of biodiversity are shared amongst all nations equitably, not just the wealthy ones. The CBD promotes protecting biodiversity on land and in the oceans, maintaining the biological integrity of soils, enhancing local food production, minimizing pollutants, and encouraging good governance and strong institutions for successful conservation.