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The graph above shows CO2CO2 measurements taken from Mauna Loa, Hawaii, and the Vostok ice core, which was drilled from ice sheets in Antarctica.Which of the following hypotheses is best supported by the graph?ATemperatures were much colder 125,000 years ago than the average temperature over the past 400,000 years.BTemperatures were the same 125,000 years ago as they are today.CTemperatures were warmer 125,000 years ago than the average temperature over the past 400,000 years.DTemperatures were cooling at a rate 125,000 years ago that was unprecedented compared to the rate over the past 400,000 years.

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