What is the arithmetic rnean of the real numbers p, q, r, s ?
I) p + q + s =25 + p
II) 5(r + s + p) = 17-5q

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 the statements I and II together 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.