If the question is asking you all except which, the answer is "people fled the urban centers because they had become too crowded and unsanitary"
Answer:
Iran was independent, and Britain controlled trade in southern Iran
Explanation:
A Sphere of Influence is a region where some country or organization has some sort of exclusivity meant to serve the interests of powers outside the borders of the organization or country that controls it. The second and third options don't fit and seem to be more of a colonial situation. The first one doesn't really say anything. The fourth, though, clearly states that there was control over one area by an organization outside the borders. Hope This Helps! Brainliest, Please?
Answer: the metric system
Which group has traditionally lacked access to education in africa? B) immigrants