Match the following scientists with their respective contributions:
$(a)$ Maheshwari $(I)$ Pre-sowing treatment of seeds of $Phaseolus$ $aureus$ with $IAA$
$(b)$ Das $(II)$ $Avena$ curvature test
$(c)$ Went $(III)$ Work on seedless fruit in cucumber
$(d)$ Chakravarty $(IV)$ Successful culture of an ovule of $Papaver$ using $IAA$ and kinetin
Select the correct matching sequence:

• A
  $a-IV, b-I, c-II, d-III$
• B
  $a-I, b-II, c-III, d-IV$
• C
  $a-II, b-III, c-IV, d-I$
• D
  $a-III, b-I, c-IV, d-II$