જો $y=2 \cos (2 \log x)+3 \sin (2 \log x)$ હોય, તો $x^2 y^{\prime \prime}+x y^{\prime}+2 y=$

  • A
    $-2 y$
  • B
    $2 y$
  • C
    $0$
  • D
    $4$

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