Biodiversity can be conserved by developing:

The correct option is C Biosphere reserve and National park

Biodiversity can be conserved by developing biosphere reserves and national park.

A biosphere reserve can be defined as a protected land or area to conserve the biological and cultural diversity of a region while promoting sustainable economic development.

A national park is an area reserved for wildlife where they can freely use the habitat and natural resources.

Thus, the correct answer is option D.