For any real number x. the greatest integer not exceeding x is denoted by[x]. If [a] = 5 for some a, then what is [2a]?
I. $$a - [a] = \frac{2}{3}$$
II. a is a rational number

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.