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For x in R-{0,1}, " let " f(1)(x)=(1)/(x...

For `x in R-{0,1}, " let " f_(1)(x)=(1)/(x), f_(2)(x)=1-x and f_(3)(x)=(1)/(1-x)` be three given functions. If a function, J(x) satisfies `(f_(2) @J@f_(1))(x)=f_(3)(x), " then " J(x)` is equal to

A

`f_3(x)`

B

`f_1(x)`

C

`f_2(x)`

D

`1/x f_3(x)`

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A
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