The adjoint of the matrix \({\rm{A}} = \left[ {\begin{array}{*{20}{c}} 1&0&2\\ 2&1&0\\ 0&3&1 \end{array}} \right]\) is

• A. \(\left[ {\begin{array}{*{20}{c}} { - 1}&6&2\\ { - 2}&1&{ - 4}\\ 6&3&1 \end{array}} \right]\)
• B. \(\left[ {\begin{array}{*{20}{c}} 1&6&{ - 2}\\ { - 2}&1&4\\ 6&{ - 3}&1 \end{array}} \right]\)
• C. \(\left[ {\begin{array}{*{20}{c}} 6&1&2\\ 4&{ - 1}&2\\ 6&3&{ - 1} \end{array}} \right]\)
• D. \(\left[ {\begin{array}{*{20}{c}} { - 6}&2&1\\ 4&{ - 2}&1\\ 3&1&{ - 6} \end{array}} \right]\)