Answer :
Final answer:
The ocean has various density zones named the pelagic, photic, and aphotic zones. Further, deeper realms can be categorized into the epipelagic, mesopelagic, and bathypelagic zones. The abyssal zone is the term for the deepest parts of the ocean.
Explanation:
The ocean's density zones are referred to by various names, but the most accurate choice is 'C) Epipelagic, Mesopelagic, Bathypelagic Zones.' Starting from the surface, all of the ocean's open water is known as the pelagic realm or zone. This realm can be divided into the photic zone, where light can penetrate, and the aphotic zone, where light cannot penetrate. Beyond the photic zone, the oceanic regions increase in depth and decrease in light penetration. Here lie the epipelagic (surface to 200m), mesopelagic (200m to approximately 1000m), and bathypelagic (1000m to about 4000m) zones. Beneath these is the abyssal zone representing the deepest parts of the ocean like the Mariana Trench.
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