Match the physical quantities given in Column I with their units given in Column II.

	Column I		Column II
A.	Resistance	p.	$\mathrm{\Omega }$
B.	Resistivity	q.	$\text{ volt }/{\mathrm{A}}^{-1}$
C.	Conductivity	r.	$\mathrm{\Omega m}$
D.	Specific conductance	s.	${\mathrm{\Omega }}^{-1}{\mathrm{m}}^{-1}$

• A

  A - r,s ; B - q ; C - q ; D - s

• B

  A - p,q,r ; B - p,s ; C - p,s ; D - s

• C

  A - p,q ; B - r ; C - s ; D - s

• D

  A - r ; B - r,q ; C - r,p ; D - r,s