Identify the Lewis acids in the following two equilbrium systems: System A: CO2 + H2O ? H2CO3 System B: Zn2+ + 6H2O ? Zn(H2O)62+ A. A: H2O; B: H2O B. A: CO2; B: system B is not a Lewis acid-base system C. A: H2O; B: Zn2+ D. A: CO2; B: H2O E. A: CO2; B: Zn2+