Please answer the questions. Did them myself and trying to make sure I have the correct answer. Thanks!

\f\fLet A he s 3 s: 3 matrix with (let A = _2 . Which tine Elf the fullnwing statements is false? (I) a det[.dl2)= 4 O E. det[lxi1)= 4 O c. det[A'1) = g C) n. det[}1f)= 2 (:1 E. A is invertible