Following solutions were prepared by mixing different volumes of NaOH and HClof different Concentration

A

$$60 mL \frac{M}{10} HCl+40 mL \frac{M}{10} NaOH$$

B

$$55 mL \frac{M}{10} HCl+45 mL \frac{M}{10} NaOH$$

C

$$75 mL \frac{M}{5} HCl+25 mL \frac{M}{5} NaOH$$

D

$$100 mL \frac{M}{10} HCl+100 mL \frac{M}{10} NaOH$$