Respuesta :

The correct answer is D.

Explanation

The atolls are a geological formation that originated from the collapse of an oceanic volcanic island. Therefore, the atolls have a ring shape since the mouth through which the lava was expelled is exposed above sea level, giving the atoll a circular shape. These formations are generally found in the South Pacific and its characterized by the formation of corals after biological processes. Therefore, the correct answer is D.

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