What is the focus area of the ADB’s regional cooperation and integration strategy?

The correct choice highlights the ADB's primary focus on enhancing cross-border infrastructure and trade facilitation within its regional cooperation and integration strategy. This focus is crucial because effective infrastructure and trade facilitation are fundamental in promoting economic integration and connectivity among member countries. The ADB recognizes that improved infrastructure—such as transport, logistics, and energy networks—facilitates trade by reducing costs and time for the movement of goods and services across borders.

Moreover, the integration of regional economies not only boosts trade but also strengthens relationships between countries, fostering stability and growth. This approach is essential in mitigating regional disparities and enhancing overall economic development.

While enhancing cultural exchanges and eliminating trade barriers are important aspects of regional cooperation, they are not the primary focus of the ADB's strategy as it relates to fostering economic ties. Improving telecommunications, while beneficial for connectivity, does not encapsulate the broader aim of enhancing trade and infrastructure, which is central to the ADB's regional cooperation efforts. Thus, the emphasis on cross-border infrastructure and trade facilitation reflects a comprehensive strategy to improve economic collaboration and growth in the region.