Which of the following sectors does the ADB primarily focus on?

The Asian Development Bank (ADB) primarily focuses on infrastructure, education, and health because these sectors are critical for the economic development and overall well-being of its member countries. Investment in infrastructure, such as transportation, energy, and water supply, facilitates trade, improves accessibility, and enhances the quality of life for citizens. Education is vital for building human capital, fostering innovation, and reducing poverty, while health is essential for ensuring a productive workforce and improving quality of life.

By concentrating on these sectors, ADB aims to promote sustainable economic growth, alleviate poverty, and support social development across Asia and the Pacific region. The bank's strategic initiatives and projects are designed to address the needs and challenges faced by its member countries in these fundamental areas, ensuring they can achieve long-term development goals.