The correct option is (b).
Explanation
The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) is an international agreement between governments. Its aim is to ensure that international trade in specimens of wild animals and plants does not threaten the survival of the species.
Option Analysis:
- Option (a) is Incorrect: CITES does not exist to promote trade in forest timber. While it regulates trade in specific endangered timber species (e.g., Rosewood), its primary function is conservation and regulation, not the promotion of commerce.
- Option (b) is Correct: The fundamental objective of CITES is to subject international trade in specimens of selected species to certain controls. This ensures that trade is sustainable, legal, and traceable, preventing over-exploitation that would threaten the survival of wild populations.
- Option (c) is Incorrect: CITES does not ban all trade of wild animals globally. It classifies species into three Appendices based on the threat level. While commercial trade is generally prohibited for species in Appendix I (threatened with extinction), trade is permitted but regulated for species in Appendix II and III.
- Option (d) is Incorrect: The establishment of zoos falls under ex-situ conservation measures managed by national governments or private entities. CITES deals specifically with the cross-border movement and trade of wildlife, not domestic captive management.
Key Takeaway:
CITES is a legally binding international agreement designed to regulate and monitor the international trade of wild fauna and flora to prevent over-exploitation and extinction.