Column $I$	Column $II$
$(A)$. Kohlrausch law can calculate	$(P)$. $\frac{\Lambda_m^c}{\Lambda_m^o}$
$(B)$. Molar conductance $\Lambda_m$	$(Q)$. $\frac{1}{R} \times \frac{l}{A}$
$(C)$. Specific conductance $\kappa$	$(R)$. $\Lambda_m^o$ of $Ca_3(PO_4)_2$
$(D)$. Degree of ionization of weak electrolyte	$(S)$. $\frac{\kappa \times 1000}{M}$

Which of the following options shows the correct matches?

• A
  $(A-R), (B-P), (C-Q), (D-S)$
• B
  $(A-S), (B-P), (C-Q), (D-R)$
• C
  $(A-R), (B-S), (C-Q), (D-P)$
• D
  $(A-P), (B-S), (C-Q), (D-R)$