What Is the PH of a Solution Prepared by Dissolving

What is the pH of a solution prepared by dissolving 0.28 grams of KOH in 250 mL of solution?
(molar mass KOH = 56.11 g/mol)

A) 1.70
B) 12.30
C) 2.00×10 ^{- 2}
D) 11.7
E) 5.0×10 ^{- 13}