Choose incorrect sentence.

$(I)$ Malpighian corpuscles, $PCT$ and $DCT$ the nephron are situated in medulla of the kidney

$(II)$ The loop of henle dips into medulla.

$(III)$ In juxta medullary nephrons, the loop of henle is too short and extends very little into the medulla.

$(IV)$ Vasa recta is absent or highly reduced in cortical nephrons.

• A

  $I, II $

• B

  $II, IV $

• C

  $I, III $

• D

  $III, IV$