If a solution of carbonic acid has a pH of 5.6 and a solution of acetic acid has a pH of 2.6, how do the hydronium ion concentrations compare in the two solutions?
A) The carbonic acid solution has higher H₃O⁺ concentration.
B) The acetic acid solution has higher H₃O⁺ concentration.
C) Both solutions have equal H₃O⁺ concentrations.
D) Insufficient information to compare H₃O⁺ concentrations.