Equal volumes and concentrations of hydrochloric acid and ethanoic acid are titrated with sodium hydroxide solutions of the same concentration. Which statement is correct?

A.     The initial pH values of both acids are equal.

B.     At the equivalence points, the solutions of both titrations have pH values of 7.

C.     The same volume of sodium hydroxide is needed to reach the equivalence point.

D.     The pH values of both acids increase equally until the equivalence points are reached.

C