Suppose A is a 5-by-5 matrix and the characteristic polynomial of A factors as (A − 3)² (A − 2)³. Under which of the following conditions will A be diagonalizable? The nullity of (A-31)² is 2 and the nullity of (A-21)³ is 3. The nullity of A-31 is 2 and the nullity of A-21 is 3. The nullity of A-31 is 3 and the nullity of A-21 is 2 The nullity of A-31 is 1 and the nullity of A-21 is 1.