If $\int_{0}^{2}(\sqrt{2x}-\sqrt{2x-x^{2}}) dx = \int_{0}^{1}(1-\sqrt{1-y^{2}}-\frac{y^{2}}{2}) dy + \int_{1}^{2}(2-\frac{y^{2}}{2}) dy + I$,then $I = \dots$

  • A
    $\int_{0}^{1}(1+\sqrt{1-y^{2}}) dy$
  • B
    $\int_{0}^{1}(\frac{y^{2}}{2}-\sqrt{1-y^{2}}+1) dy$
  • C
    $\int_{0}^{1}(1-\sqrt{1-y^{2}}) dy$
  • D
    $\int_{0}^{1}(\frac{y^{2}}{2}+\sqrt{1-y^{2}}+1) dy$

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