Review this equation: HCl + NaOH NaCl + H2O. What volume of a 6.0 M HCl solution is required to completely neutralize 125.0 ml of a 2.5 M NaOH solution?
A. 125 ml
B. 2.5 ml
C. 52 ml
D. 6.0 ml
E. 104 ml