Which one of the following statements best implies the need to shift toward contemporary conservation approach?

• A. Exploitation of natural resources causes a stress on the Himalayan ecosystem.
• B. Climate change alters precipitation patterns, causes episodes of drought and biotic interference.
• C. The rich biodiversity, including endemic diversity, makes the Himalayan region a biodiversity hotspot.
• D. The Himalayan biogeographic region should be enabled to adapt to climate change smoothly.