Which of the following is true about the similarities of Cramer's rule and Gauss-Jordan Method?

• Both Cramer's rule and Gauss- Jordan need non-zero valued element
• All of the answers correct
• Both Cramer's rule and Gauss- Jordan method use augmented matrix Correct
• Both Cramer's rule and Gauss- Jordan method only work for m =E2=89=A0n matrices