If $\log 2=x, \log 3=y$ and $\log 7=z,$ then the value of $\log (4 \sqrt[3]{63})$ is

  • A
    $2 x+\frac{2}{3} y-\frac{1}{3} z$
  • B
    $2 x+\frac{2}{3} y+\frac{1}{3} z$
  • C
    $2 x-\frac{2}{3} y+\frac{1}{3} z$
  • D
    $-2 x+\frac{2}{3} y+\frac{1}{3} z$

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