Correct Answer - Option 4 : Manoj
From the given information,
1) Rama is taller than Saho.
Rama > Saho
2) Tara is shorter than Saho.
Rama > Saho > Tara
3) Dinesh is taller than Tara but shorter than Saho.
Rama > Saho > Dinesh > Tara
4) Manoj is shorter than Dinesh.
5) Kailash is shorter than Tara but taller than Manoj.
Rama > Saho > Dinesh > Tara > Kailash > Manoj
So, the final arrangement is:
Rama > Saho > Dinesh > Tara > Kailash > Manoj
So, Manoj is the shortest.
Hence, the correct answer is "Manoj".