$y=c^{2}+\frac{c}{x}$ એ કયા વિકલ સમીકરણનો ઉકેલ છે?

• A
  $x^{4}\left(\frac{d y}{d x}\right)^{2}+x\left(\frac{d y}{d x}\right)-y=0$
• B
  $x^{4}\left(\frac{d y}{d x}\right)^{2}-x\left(\frac{d y}{d x}\right)-y=0$
• C
  $x^{4}\left(\frac{d y}{d x}\right)^{2}-x\left(\frac{d y}{d x}\right)+y=0$
• D
  $x^{4}\left(\frac{d y}{d x}\right)^{2}+x\left(\frac{d y}{d x}\right)+y=0$