If $y=y(x)$ is the solution of the differential equation $x\frac{dy}{dx} + 2y = x^2$ satisfying $y(1)=1$,then $y\left(\frac{1}{2}\right)$ is equal to

  • A
    $\frac{7}{64}$
  • B
    $\frac{1}{4}$
  • C
    $\frac{49}{16}$
  • D
    $\frac{13}{16}$

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