Evaluate the indefinite integral ${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}(\frac{x^{2}2x1}{x1})dx$

Select one:

a$.\frac{x^2}{2}x$

b$.\frac{1}{2}(\frac{x^{2}2x1}{x1}{)}^2$

c$.\frac{x^2}{2}xC$

d$.$ None of the above