Final answer:
Hispanic Americans are the group often arriving in the U.S. today seeking refuge due to unstable political situations, while Asian Americans are known as the 'model minority.'
Step-by-step explanation:
The group often arriving in the United States seeking refuge from tumultuous political situations today is Hispanic Americans. This aligns with the broader context of immigration patterns and challenges faced by various groups arriving in the U.S. For example, the Salvadorans arrived during the 1980s to escape civil wars, and this trend of seeking refuge due to instability in Latin American countries continues. The term Hispanic Americans is used to describe Americans whose ancestral home was one of the many Spanish-speaking nations in Latin America. The model minority, referred to in the provided context, is Asian Americans (option b). Asian Americans arrived in the United States in waves, each with different circumstances and at different times, as reflected in the vast diversity of experiences.