In the sequence 1, a, b, c, 9 of real numbers, what is the value of c?
I. The third term of the sequence is twice the first.
II. Second term of the sequence is 4.

A

If the statement I alone is sufficient to answer the question.

B

If the statement II alone is sufficient to answer the question.

C

If both the statements I and II are sufficient to answer the question but neither statementaloneis not sufficient.

D

If both the statements I and II together are not sufficient to answerthe question and additional data is required.