Final answer:
An asylum seeker is most closely associated with migrants fleeing persecution or war and seeking protection in another country. Therefore, the correct option is D.
Step-by-step explanation:
An asylum seeker is most closely associated with migrants fleeing persecution or war and seeking protection in another country.
A refugee is an individual who has been forced to leave their country to escape war, persecution, or natural disaster. Asylum-seekers are those whose claim to refugee status has not been validated yet.
In 2013, the number of refugees, asylum-seekers, and internally displaced people worldwide exceeded 50 million, with half of them being children. This highlights the magnitude of the issue and the need for international support and protection.