How many colors have been used to paint the outer surface of the cube?
I) Each face of the cube is painted using only one color, and no two adjacent faces have the same color.
II) At least two pairs of opposite faces have the same color.

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 statement alone is sufficient.

D

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