Is the following matrix in RREF? Why or why not $($choose the best answer$)?$

Group of answer choices

No$,$ the third column doesn't have a pivot.

Yes, all rows have pivots, which descend accordingly and have $0$s above and below them.

No$,$ we can still do row operations to get another $0$ in column $3.$

Yes, since we have forced every column to have a pivot, which descent accordingly and have $0$s above and below them.