The value of the determinant $\left|\begin{array}{ccc}a+b & a+2b & a+3b \\ a+2b & a+3b & a+4b \\ a+4b & a+5b & a+6b\end{array}\right|$ is

  • A
    $a$
  • B
    $b$
  • C
    $0$
  • D
    $a+b$

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