Greenland would be the answer i believe
Answer: 'A' is the response.
Explanation: The diagram A appears to show a location where magma is rising as a result of an upwelling convection current in the magma, which could cause the sea bottom to spread. The spreading of the crust is indicated by the arrows. This will become a focal point for the spreading marine floor.
To learn more about oceanic spreading center refer:
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In anthropology and geography, a culture region, culture sphere, culture area or culture area refers to a geographical area with one relatively homogeneous human activity or complex of activity (Culture). Answer A is the most likely answer.