Mathematics · JEE | DETERMINANTS

If \( A \) is a singular square matrix, then which of the following is true?

1. A
   \( A^{-1} \) exists
2. B
   \( |A| \neq 0 \)
3. C
   \( |A| = 0 \)
4. D
   \( \text{adj } A = 0 \)