Correct Answer - Option 2 : Priya
From the given information:-
1. Simi is older than Renu
Simi > Renu
2. Geeta is younger than Renu.
Simi > Renu > Geeta
3. Priya is older than Simi
Priya > Simi > Renu > Geeta
So, Priya is the eldest of all.
Hence, the correct answer is "Priya".