A concentrated KOH (molecular weight = 56.105 g/mol) solution is 45.0% wt KOH and has a density of 1.45 g/mL. How many milliliters of the concentrated KOH solution must be diluted to obtain 500.0 mL of 1.10 M KOH?

a. 269.50 mL
b. 308.22 mL
c. 222.37 mL
d. 185.64 mL