The PH of a Vinegar Solution Is 2

The pH of a vinegar solution is 2.32. What is the hydronium ion concentration, [H₃O⁺], for this solution?

A) [H₃O⁺] = 2.1×10 ^{- 12} M
B) [H₃O⁺] = 4.8×10 ^{- 3} M
C) [H₃O⁺] = 0.36 M
D) [H₃O⁺] = 2.3 M
E) [H₃O⁺] = 2.1×10² M