If \(A+B=\begin{pmatrix} 6 & 7\\ 5 & 0\\ \end{pmatrix}and\;A=\begin{pmatrix} 2 & 5\\ 1 & -1\\ \end{pmatrix}\). Find the matrix B.
\(\begin{pmatrix} 4 & 1\\ 2 & 4\\ \end{pmatrix}\)
\(\begin{pmatrix} 4 & 2\\ 4 & 1\\ \end{pmatrix}\)
\(\begin{pmatrix} 4 &1\\ 4 & 1\\ \end{pmatrix}\)
\(\begin{pmatrix} 4 & 4\\ 4 & 2\\ \end{pmatrix}\)
