The [OH^-] and the PH of 0

The [OH^-] and the pH of 0.035 M KOH at 25 °C are, respectively, ________.

A) 0.035 M and +1.46
B) 0.035 M and -1.46
C) 2.9 x 10^-13 M and -12.5
D) 0.035 M and +12.5