A battery of emf E is connected across a conductor as shown. As one observes from A to B,

	Column-I		Column-II
(i)	current	(p)	increases
(ii)	drift velocity of electron	(q)	decreases
(iii)	electric field	(r)	remains same
(iv)	potential drop per unit length	(s)	cannot be determined

Now, match the given columns and select the correct option from the codes given below.

• A

  i-p, ii-q, iii-r, iv-s

• B

  i-r, ii-q, iii-q, iv-q

• C

  i-q, ii-p, iii-s, iv-r

• D

  i-s, ii-q, iii-q, iv-p