Six boys Ram, Sumit, Sunil, Rahul, Raj and Aman are sitting around a circular table facing towards the centre (not necessarily in the same order). Sunil is not the immediate neighbour of Aman. Aman is second to right of Ram. Rahul is second to the right of Sumit. Raj is to immediate left of Ram. Who is the immediate neighbour of Raj and Rahul both?

A

Aman

B

Ram

C

Sumit

D

Sunil