Select the two correct statements out of the four $(i-iv)$ given below about lac operon.

$i.$ Glucose or galactose may bind with the repressor and inactivate it.

$ii.$ In the absence of lactose, the repressor binds with the operator region.

$iii.$ The z-gene codes for permease.

$iv.$ This was elucidated by Francois Jacob and Jacque Monod.

  • A

    $(ii)\; and\; (iii)$

  • B

    $(i)\; and \;(iii)$

  • C

    $(ii)\; and\; (iv)$

  • D

    $(i)\; and\; (ii)$

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