Plz explain step by step

Q17. The equation of the line x + y + z − 1 = 0, 4x + y  − 2z + 2 = 0 written in the symmetrical form is
(a) $\frac{x+1}{1}=\frac{y-2}{-2}=\frac{z-0}{1}$
(b) $\frac{x}{1}=\frac{y}{-2}=\frac{z-1}{1}$
(c) $\frac{\frac{x+1}{2}}{1}=\frac{y-1}{-2}=\frac{\frac{z-1}{2}}{1}$
(d) $\frac{x-1}{2}=\frac{y+2}{-1}=\frac{z-2}{2}$