What approach to foreign affairs grew out of xenophobia?

The notion of “alien” lies at the base of self-identification of individuals and groups. In practice, this means that one be a stranger both socially and ethnically. The idea, otherwise embodying xenophobia, is the idea of preserving the identity of the state and protecting the interests of the indigenous ethnic group, as well as protectionism. This idea is most clearly expressed in legal norms restricting immigrants' rights compared to the indigenous population. It is characteristic of most developed countries of the European West.

Explanation:

the answer wold be b) travel among nations should be regulated by an international organization