50.0 mL of a Ba(OH)₂ solution were titrated with 66.90 mL of a 0.500 M HCl solution to reach the equivalence point. What is the molarity of the Ba(OH)₂ solution?
(2HCl + Ba(OH)₂ → BaCl₂ + 2H₂O)
A) 0.500 M
B) 0.750 M
C) 1.000 M
D) 1.500 M