A solution of AlCl3 is prepared by dissolving 125 g of AlCl3 in enough water to make a total solution volume of 300. mL. What is the concentration of chloride ion in the solution?

A. 6.25 M
B. 1.25 M
C. 3.13 M
D. 2.81 M
E. 7.14 M
F. 9.38 M