Choose the correct statement from A, B, C, D to complete the following sentence:
The ocean carbon-sink feedback loop accelerates global temperature rise because...
warming surface waters increase the density of the upper ocean, accelerating the thermohaline circulation and the downwelling of dissolved carbon.
increased atmospheric CO2\text{CO}_2CO2 acidifies the ocean, which stimulates the rapid calcification of marine organisms, causing them to store more carbon.
warmer ocean waters have a lower solubility for carbon dioxide, reducing the ocean's capacity to absorb CO2\text{CO}_2CO2 from the atmosphere and accelerating the greenhouse effect.
increased ocean evaporation removes massive volumes of dissolved CO2\text{CO}_2CO2 from the water column, converting it permanently into atmospheric oxygen.
