The correct option is
B Data inadequate
We first find the sequence of heights.
By (iii), we have Monika
< Pooja.
By (iv), we have Monika
< Rupa.
By (v), we have Pooja < Neelam.
and by (ii) Kamini is at second position.
Therefore, concluding above finding, we get three outcomes, which satisfies these.
1) Neelam > Kamini > Rupa > Pooja > Monika
2) Neelam > Kamini > Pooja > Rupa > Monika
3) Rupa > Kamini > Neelam > Pooja > Monika
Therefore, Data is inadequate, as we are not able to conclude that who is in third position, among Rupa, Pooja and Neelam