If $\int \frac{5 \tan \mathrm{x}}{\tan \mathrm{x}-2} \mathrm{dx}=\mathrm{ax}+\mathrm{b} \log |\sin \mathrm{x}-2 \cos \mathrm{x}|+\mathrm{c}$, then $\mathrm{a}+\mathrm{b}=$

• A

  $2$
• Correct answer
  B

  $3$
• C

  $4$
• D

  $-1$

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