Correct answer: (a) The Asian Development Bank (ADB)
Explanation
- A
The Asian Development Bank (ADB)
The Asian Development Bank (ADB). UPSC keys ADB as the launcher of the Nature Solutions Finance Hub for Asia and the Pacific.
- B
The Asian Infrastructure Investment Bank (AIIB)
The Asian Infrastructure Investment Bank (AIIB). The neighbouring multilateral in the same nature-finance week; not the official letter.
- C
The New Development Bank (NDB)
The New Development Bank (NDB). Another BRICS-neighbour bank, not this hub.
- D
The International Bank for Reconstruction and Development (IBRD)
IBRD (World Bank). A climate-finance neighbour, not the launcher keyed here.
Summary. Official Set A key is (a) ADB. The Nature Solutions Finance Hub for Asia and the Pacific is scored as an Asian Development Bank launch. AIIB, NDB and IBRD sit in the same COP-week nature-finance neighbourhood and are the traps. Do not swap the multilateral just because all four lend to infrastructure.