What are the main thematic areas of ADB's operations?

The correct answer identifies the primary thematic areas of the Asian Development Bank's operations as infrastructure, climate change, and social sectors.

Infrastructure is a core focus for the ADB because it is crucial for economic growth and development. Investments in various forms of infrastructure—such as transportation, energy, and water supply—help to facilitate trade, enhance access to resources, and improve overall living conditions in developing countries.

Climate change is another major theme incorporated into ADB's operations. The bank acknowledges the significant impact of climate change on sustainable development and therefore prioritizes projects that promote environmental sustainability and resilience. This includes efforts to reduce greenhouse gas emissions and adapt to climate-related challenges.

Lastly, the social sectors encompass areas such as education, health, and gender equality. ADB aims to improve the quality of life for people in the region by investing in social infrastructure and services that enhance human capital and social well-being.

While other thematic areas listed in the other choices may also be considered relevant to ADB's mission, this answer specifically highlights the dominant themes that guide ADB's project financing and strategic priorities.