\( \tan \theta = \frac{3}{4} \) হলে, \( \frac{\sin \theta - \cos \theta}{\sin \theta + \cos \theta} \) এর মান কোনটি?

A 7

B \( \frac{1}{7} \)

C -7

D \( -\frac{1}{7} \)

Correct Answer: Option D