The relative abundance of dissolved salts in seawater in descending order is ______ ?

A. chlorine, sodium, sulphate, magnesium, calcium, potassium
B. sodium, chlorine, magnesium, potassium, sulphate, calcium
C. chlorine, magnesium, calcium, sodium, potassium, sulphate
D. chlorine, sodium, magnesium, calcium, potassium, sulphate

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