Final answer:
The central idea that best describes the text is 'A) Amira is a normal teenage girl living through extraordinary circumstances as a refugee,' as it captures the personal and broader experiences of refugees highlighted in the text.
Step-by-step explanation:
When evaluating the central idea of the provided text, we must consider the content that focuses on the plight of refugees, how they are managed by different countries, and the various efforts made to ease their suffering. The best option that summarizes the central idea is A) Amira is a normal teenage girl living through extraordinary circumstances as a refugee. This choice best aligns with the narrative of an individual experiencing the struggles typically faced by refugees, as characterized throughout the text. The text discusses the challenges refugees encounter, such as leaving their countries due to extreme crises, the steep influx of displaced populations into host countries, and the international protection provided under the United Nations conventions.
Options B, C, and D, while relevant, do not encapsulate the central narrative rooted in personal experience and the broader implications of being a refugee, as described in the text. Option B focuses on the creation of makeshift communities, Option C suggests a need for policy and protection improvement by the United Nations, and Option D revolves around the impact of sharing personal stories, yet none of these capture the full scope presented by the comprehensive situation of refugees described in the provided content.