A conductance cell was filled with a 0.02 M KCl solution which has a specific conductance of `2.768xx10^(-3)ohm^(-1)cm^(-1)` . If its resistance is 82.4 ohm at `25^(@)` C the cell constant is:
A. `0.2182cm^(-1)`
B. `0.2281cm^(-1)`
C. `0.2821cm^(1)`
D. `0.2381cm^(-1)`
