Find $\int\left(\frac{1}{x+1}-\frac{1}{(x+1)^{2}}\right) d x$ .
A) $\ln |x+1|-\frac{3}{(x+1)^{3}}+C$
B) $\ln |x+1|+\frac{3}{(x+1)^{3}}+C$
C) $\ln |x+1|-\frac{1}{x+1}+C$
D) $\ln |x+1|+\frac{1}{x+1}+C$

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The Answer of Find $\int\left(\frac{1}{x+1}-\frac{1}{(x+1)^{2}}\right) d x$ .
A) $\ln |x+1|-\frac{3}{(x+1)^{3}}+C$
B) $\ln |x+1|+\frac{3}{(x+1)^{3}}+C$
C) $\ln |x+1|-\frac{1}{x+1}+C$
D) $\ln |x+1|+\frac{1}{x+1}+C$