#### Answer

Reduced row-echelon form.

#### Work Step by Step

A matrix is a row-echelon matrix if:
1. If there are any rows consisting only of zeros, they are all together
at the bottom of the matrix.
2. The first nonzero element in any nonzero row is a $1$.
3. The leading $1$ of any row below the first row is to the right of the leading $1$ of the row above it.
A matrix is a reduced row-echelon matrix if it is a row-echelon matrix and any column that contains a leading $1$ has zeros everywhere else.
Hence here we can see that it is in reduced row-echelon form.