In the Following Reversible Reaction the Br∅nsted Acids Are ________

Multiple Choice

In the following reversible reaction the Br∅nsted acids are ________.
HCO₃^-(aq) + OH^-(aq) ⇌ CO₃^2-(aq) + H₂O

A) HCO₃^- and H₂O
B) HCO₃^- and CO₃^2-
C) OH^- and CO₃^2-
D) OH^- and H₂O
E) H₂O and CO₃^2-