- Ex situ conservation (Option 1): Ex situ conservation involves the conservation of species outside their natural habitats, such as in zoos, botanical gardens, and seed banks.
- In situ conservation (Option 2): In situ conservation is the conservation of species in their natural habitats. Wildlife safari parks are a good example of in situ conservation, where animals are conserved within their natural ecosystems, with controlled interventions to protect and maintain biodiversity.
- Biodiversity hot spots (Option 3): Biodiversity hot spots are areas that are rich in biodiversity but are under threat from human activity. While safari parks may sometimes be located in biodiversity hotspots, the term "hotspots" refers to specific areas rather than a form of conservation.
- Sacred grooves (Option 4): Sacred grooves refer to areas that are preserved due to religious or cultural beliefs, which is different from the formal process of wildlife conservation.
Step 2: Conclusion.
Wildlife safari parks are examples of in situ conservation, as they help conserve species in their natural environment.
Final Answer:
\[
\boxed{\text{The correct answer is (2) In situ conservation.}}
\]