There are five friends, Deepu, Sonu, Tinku, Guddu and Innu. Innu is taller than Tinku. Among all, Tinku comes exactly in the middle on the basis of height. Guddu is shortest among all. Sonu is taller than Tinku but not the tallest in the group. Who comes at the 2nd position starting from the shortest to tallest?
1
Innu
2
Sonu
3
Guddu
4
Deepu