Four boys A, B, C, D sit around a round table side by side facing the centre of the table. Then who sits to the left of B?
(I) B and C face each other and A sits between Band C.
(II) D sits to the right of C and sits opposite to A.

if the statement (I) alone is sufficient to answer the question, but (II) does not answer the question.

if the statement {II) alone is sufficient to answer the question but (I) does not answer the question.

if both the statements (I) and (II) are sufficient to answer the question but neither statement alone is sufficient.

if both the statements (I) and (II) together are not sufficient to answer the question and additional data is required.