Is 5 a root of the poly1101nial $$p(x)$$?
I) $$p\left(p\left(p(7)\right)\right) \neq 0$$
II) $$p(7) = 21$$ and $$p(21) = 5$$

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.