$\begin{array}{1 1} \text{(a) Molar conductivity $A_m= \frac{k×1000}{N}$ , Equivalent conductivity $\Delta_e = \frac{k×1000}{M}$ } \\ \text{(b) Molar conductivity $A_m= \frac{k×1000}{M}$ , Equivalent conductivity $\Delta_e = \frac{k×1000}{N}$ }\\ \text{(c) Molar conductivity $A_m= \frac{k×100}{M}$ , Equivalent conductivity $\Delta_e = \frac{k×100}{N}$} \\\text{(d) Molar conductivity $A_m= \frac{k×100}{N}$ , Equivalent conductivity $\Delta_e = \frac{k×100}{M}$}\end{array} $