Concept: The question tests on the basics of Counting
Solution
When seating n people in a circle the number of arrangements = (n - 1)!
Let the 2 people be considered as 1 unit. We therefore have 5 units (4 individuals and 1 unit of 2 people) to be arranged.
External arrangement = (5 - 1)! = 4! = 24
Internal arrangement of the 2 people = 2! = 2
Total arrangements = 24 * 2 = 48
Option B