A Solution Is Prepared by Adding 1 $\mathrm { CaCl } _ { 2 }$

A solution is prepared by adding 1.40 g of solid NaCl to 50.0 mL of 0.100 mol L^-1 $\mathrm { CaCl } _ { 2 }$ .What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.

A) 0.228 mol L^-1
B) 0.579 mol L^-1
C) 0.479 mol L^-1
D) 0.679 mol L^-1
E) 0.128 mol L^-1