If $A+2 B=\left[\begin{array}{ccc}1 & 2 & 0 \\ 6 & -3 & 3 \\ -5 & 3 & 1\end{array}\right]$ and $2 A-B=\left[\begin{array}{ccc}2 & -1 & 5 \\ 2 & -1 & 6 \\ 0 & 1 & 2\end{array}\right]$ then $\operatorname{tr}(A)-\operatorname{tr}(B)=$

• A

  $1$
• Correct answer
  B

  $2$
• C

  $3$
• D

  $4$

Hence, the correct answer is option: 'B'.