How many member countries does the ADB have as of 2023?

As of 2023, the Asian Development Bank (ADB) consists of 68 member countries. This number reflects ADB's evolution and expansion since its establishment in 1966. Initially created with just 31 founding members, the ADB has increased its membership over the decades to include a diverse range of countries from the Asia-Pacific region and beyond.

The significance of having 68 member countries highlights ADB's role as a major multilateral development institution focused on reducing poverty and promoting sustainable economic growth in the region. By having a larger membership, ADB is equipped to address the complex challenges faced by its member countries, pooling resources and knowledge to effectively tackle development issues.

This context underscores the importance of collaboration and partnership among its diverse members, which is crucial for achieving ADB's goals. The incorrect options present numbers that do not accurately reflect the current membership of the ADB, illustrating how member composition evolves with geopolitical and economic changes in the region.