Consider the reaction represented by the following equation: \(\mathrm{CaCl}_{2+0}+\mathrm{H}_{2} \mathrm{C}_{2} \mathrm{O}_{2} \quad \mathrm{CaC}_{2} \mathrm{O}_{\text {ae }}+2 \mathrm{HCl}_{2 \text { an }}\) which of the following would dissolve the precipitate of \(\mathrm{CaC}_{2} \mathrm{O}_{2}\) formed?
A. Stirring the mixture vigorously B. adding more calcium chloride solution C. Increasing the concentration of the ethanedioic acid \(\quad\) D. Adding concentrated hydrochloric acid.
