What is the value of $\frac{\sin \theta+\cos \theta-\tan \theta}{\sec \theta+\operatorname{cosec} \theta-\cot \theta}$ when $\theta=\frac{3 \pi}{4}$ ?

• A

  0
• Correct answer
  B

  1
• C

  -1
• D

  None of the above

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