Let $z$ and $w$ be two complex numbers such that $\bar{z}+i \bar{w}=0$ and $\operatorname{Arg}(z w)=\pi$. Then,$\operatorname{Arg} z=$

  • A
    $\frac{3 \pi}{4}$
  • B
    $\frac{\pi}{2}$
  • C
    $\frac{5 \pi}{4}$
  • D
    $\frac{\pi}{4}$

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