Countries rely on interdependence in trade primarily to access goods and services that they cannot effectively produce themselves. This can be due to a variety of factors, including differences in resource availability, expertise, technology, and production costs. By engaging in trade, countries can specialize in producing certain goods where they have a competitive advantage, allowing for greater efficiency and a broader selection of products for consumers.
Therefore, the most relevant response from your list is:
To access/get the goods and services they cannot make themselves.
This trade interdependence helps promote economic growth, enhances innovation, and fosters international cooperation.