In order to learn about the experiences of muslims living in non-muslim countries, a historian surveys muslims who have immigrated to france from north africa and the middle east to learn more about how life in europe has influenced them. her survey focuses on which major historical theme?
a. creation, expansion, and interaction of economic systems
b. development and interaction of cultures
c. interactions between humans and the environment
d. creation, expansion, and interaction of political systems

The answer is: B. Development and interaction of cultures

Surveys that focus on this theme would focus the attention on how both the advancement in technology, economy, and infrastructure that happen to a certain culture throughout the years. Not only that, this theme also study the relationships that the people from that culture have with other cultures around it. (can be identified from  or military alliances or trading relationships that occurs between them)

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories

i see, would you mind putting it as one?