What is the concentration of NaCl in the final solution when 65 mL of a 12 M NaCl solution is diluted with pure water to a total volume of 0.15 L?

a. 28 M
b. 5.2 M
c. 5.2 × 10³ M
d. 2.8 × 10⁻² M
e. 17 M