Which among the following expressions is/are not correct?
A. `mu^(oo) = gamma_(+) lambda_(+)^(oo)+gamma_(-) gamma_(-)^(oo)`
B. `lambda^(oo) = (1)/(n^(+)) lambda_(+)^(oo) + (1)/(n^(-)) lambda_(-)^(oo)`
C. `lambda_("cation")^(oo) = mu_("cation")^(oo) xx "faraday"`
D. `lambda_("cation")^(oo) = mu_("cation")^(oo) xx "faraday"`