Find the concentration of calcium ions in a solution made by adding 3.50 g of calcium fluoride to 750. mL of 0.125 M NaF. For CaF₂, Kₛₚ = 3.95 times 10¹¹.

A. 6.32 x 10¹⁰ M
B. 4.29 x 10⁻⁴ M
C. 3.16 x 10¹⁰ M
D. 2.53 x 10⁻⁹ M
E. 2.15 x 10⁻⁴ M