The conductance of a solution of an electrolyte is same as that of its conductivity. The cell used can be said to have cell constant equal to.

The ratio of conductance and conductivity is known as cell constant.
​If conductance is the same as that of the conductivity of the electrolyte
conductance=conductivity then,
 $\mathrm{cell} \mathrm{constant}=\frac{\mathrm{conductance}}{\mathrm{conductivity}}$=1

Hence, the correct option is A).