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I chose answer choice C because being the rock being submerged in water does not prove the conclusion that is falsifying the idea that life began in the ocean and did not exist on land until half a billion years ago.
Does anyone have an explanation for why C does support the conclusion and why D would be the answer for non-supporting? Thanks!
Admin Note: Edited title. Please use the format: "PT#.S#.Q# - brief description of the question."