Correct Answer: C

Rationale: The Pacific Ocean is the largest and deepest ocean on Earth, covering about one-third of the planet’s surface area and stretching from the Arctic Ocean in the north to the Southern Ocean in the south. It spans approximately 165 million square kilometers and contains more than half of the world's ocean water. Its vast size influences global climate and weather patterns, including phenomena such as El Niño and La Niña. The Pacific also holds the Mariana Trench, the deepest point on Earth, making it an essential area for both marine biodiversity and scientific exploration.

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