What is the solution of the differential equation \(\frac{{dx}}{{dy}} = \frac{{x\; + {\rm{\;}}y\; + {\rm{\;}}1}}{{x\; + {\rm{\;}}y\; - {\rm{\;}}1}}?\)Where c is the arbitrary constant

What is the solution of the differential equation \(\frac{{dx}}{{dy}}

1.	What is the solution of the differential equation \(\frac{{dx}}{{dy}} = \frac{{x\; + {\rm{\;}}y\; + {\rm{\;}}1}}{{x\; + {\rm{\;}}y\; - {\rm{\;}}1}}?\)Where c is the arbitrary constant
A.	y – x + 4ln(x + y) = c
B.	y + x + 2 ln(x + y) = c
C.	y – x + ln(x + y) = c
D.	y + x - 2 ln (x + y) = c
Answer» D. y + x - 2 ln (x + y) = c