Correct option is B
Given:
A group of six friends: Bindi, Moni, Saya, Arjun, Himesh, and Pankaj
Bindi is younger than Moni but older than Saya.
Moni > Bindi > Saya
Arjun is younger than only one person.
Arjun is the second oldest.
Himesh is older than Pankaj but younger than Moni.
Moni > Himesh > Pankaj
Saya is older than Pankaj but younger than Bindi.
Bindi > Saya > Pankaj
From the clues, the relative age order is:
Moni > Arjun > Himesh > Bindi > Saya > Pankaj
From the order, the youngest person is Pankaj.
Final Answer: (B) Pankaj