The curving band of red that goes from the top of the map to the bottom is a divergent plate boundary in the middle of the ocean, i.e., option D.
What is a divergent plate boundary?
When two tectonic plates move away from each other results in divergent plate boundaries.
Earthquakes are common and magma (molten rock) rises from the Earth's mantle to the surface, solidifying to create new oceanic crust around these boundaries.
The curving band of red that goes from the top of the map to the bottom is a divergent plate boundary in the middle of the ocean.
Thus, the correct option is D.
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