Two numbers $x$ and $y$ are chosen at random from the set of integers $\{1,2,3,4......15\}.$ The probability that point $(x,y)$ lies on a line through $(0,0)$ having slope $\frac{2}{3}$ is

  • A

    $\frac{1}{3}$

  • B

    $\frac{1}{15}$

  • C

    $\frac{1}{21}$

  • D

    $\frac{1}{42}$

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