R is a relation defined on A, where A is the set {a,b,c,d,e}.
Is R symmetric?
I) $$R \subseteq A \times A$$
II) $$R = \left\{(x,y) \mid x \ is \ vowel \ and \ y = e \right\}$$

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.