The correct option is C Both (iii) or (iv)
Given (i) Aarti > Sanya, (ii) Kashish > Muskaan >Aarti.
(v) Gargi is eldest.
So, Gargi > Kashish > Muskaan > Aarti > Sanya.
Clearly, the statement (iii) and (iv) are superfluous.
Hence, option (D) is the correct answer.