What is the effect of adding more water to the following equilibrium reaction -- CO2+H2O <---> H2CO3

What is the effect of adding more water to the following equilibrium reaction --

CO2+H2O <---> H2CO3




a.more H2CO3 is produced
b.CO2 concentration increases
c. the equilibrium is pushed in the direction of the reactants
d.there is no effect



Answer: A