The correct option is D Na2SO4(aq)+H2O(l)+CO2(g)
Metal carbonates on reaction with acids give corresponding salt along with carbon dioxide and water.
Here, sodium carbonate (Na2CO3) reacts with sulphuric acid (H2SO4) to give sodium sulphate (Na2SO4), water (H2O) and carbon dioxide gas (CO2). The complete reaction is as follows:
Na2CO3(aq)+H2SO4(aq)→Na2SO4(aq)+H2O(l)+CO2(g)