Seawater Has Become More Acidic Since the Industrial Revolution and This

Seawater has become more acidic since the industrial revolution and this is commonly attributed to ________.

A) the increase in CO2 being put into the atmosphere and then absorbed into the oceans.
B) the loss of calcite-secreting organisms and reef-builders in the oceans due to pollution.
C) a decrease in the amount of base compounds to neutralize the natural acids in seawater
D) human dumping of large quantities of waste materials into the oceans that increase the acid content of the water
E) global climate change,which is changing the temperature of seawater and producing a related change in the water chemistry