The value of the integral \( \int_{0}^{\pi} \frac{\sin k x}{\sin x} d x \) ( \( k \) is aneven i...

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The value of the integral \( \int_{0}^{\pi} \frac{\sin k x}{\sin x} d x \) ( \( k \) is aneven integer) is equal to
(A) \( \pi \)
(B) \( \frac{\pi}{2} \)
(C) \( \frac{k \pi}{2} \)
(D) 0
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