Are all the four friends viz. A, B, C and D who are sitting around a circular table, facing the centre?
I) B sits second to right of D. D faces the centre. C sits to immediate right of both B and D.
II) A sits to immediate left to B. C is not an immediate neighbour of A. C sits to immediate right of D.
III) D is an immediate neighbour of both A and C. B sits to the immediate left of A. C sits to the immediate right of B.

If the data in Statement I and II are sufficient to answer the question, while the data in Statement III are not required to answer the question.

If the data in Statement I and III are sufficient to answer the question, while the data in Statement II are not required to answer the question.

If the data in Statement II and III are sufficient to answer the question, while the data in Statement I are not required to answer the question.

If the data in either Statement I alone or Statement II alone or Statement III alone are sufficient to answer the question.

If the data in all the Statements I, II and III together are necessary to answer the question.