Solve this following
Question:

Mark $(\sqrt{ })$ against the correct answer in each of the following:

$\int \frac{\mathrm{dx}}{\sqrt{2-4 x+x^{2}}}=?$

A. $\log \left|(x-2)+\sqrt{x^{2}-4 x+2}\right|+C$

B. $\log \left|x+\sqrt{x^{2}-4 x+2}\right|+C$

C. $\log \left|x-\sqrt{x^{2}-4 x+2}\right|+C$

D. none of these

Solution:

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