What are the values of x, y and z ?
I) $$x : y : z = 1 : 2 : 5$$
II) $$x + y + z = 64$$

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.