Column $- I$ gives certain physical terms associated with the flow of current through a metallic conductor. Column $- II$ gives some mathematical relations involving electrical quantities. Match Column $- I$ and Column $- II$ with appropriate relations.

Column $- I$	Column $- II$
$(A)$ Drift Velocity	$(P)$ $\frac{m}{n e^{2} \rho}$
$(B)$ Electrical Resistivity	$(Q)$ $n e v_{d}$
$(C)$ Relaxation Period	$(R)$ $\frac{e E}{m} \tau$
$(D)$ Current Density	$(S)$ $\frac{E}{J}$

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