How many elements are there in the set A ?
I. $$A \cup B$$ has 25 elements.
II. B - A has 15 elements.

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.