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Let `y=y(x),y>0`, be a solution curve the differential equation `(1+x^2)by =y(x-y)dx` . If `y(0)=1` and `y(2sqrt2)= beta`, then

A

`e^(3beta^(-1))=e(3+2sqrt2)`

B

`e^(beta^(-1))=e^-2(5+sqrt2)`

C

`e^(3beta^(-1))=e(5+sqrt2)`

D

`e^(beta^(-1))=e^-2(3+2sqrt2)`

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