Is the matrix A singular?
I. A is a $$2 \times 2$$ matrix
II. The sum of the elements of the matrix A is zero.

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.