The reaction which displays an example of an arrhenius base is
NaOH(s) → Na⁺(aq) + OH⁻(aq).
According to the Arrhenius theory, those substance which gives H⁺ ion to the aqueous solution is acid and which gives OH⁻ ion to the aqueous solution is known as base.
All given chemical reactions will display an arrhenius acid, but only one reaction display as a arrhenius base as they gives OH⁻ ion to the aqueous solution and that reaction will be:
NaOH(s) → Na⁺(aq) + OH⁻(aq)
Hence option (1) is correct.
To know more about arrhenius base, visit the below link:
https://brainly.com/question/1321386