Consider the following statements:
(a) If any two rows or columns of a determinant are identical, then the value of the determinant is zero.
(b) If the corresponding rows and columns of a determinant are interchanged, then the value of the determinant does not change.
(c) If any two rows (or columns) of a determinant are interchanged, then the value of the determinant changes in sign.
Which of these are correct?