Domain dan range dari fungsi f(x)=(x-2)/(x-1)+3

Domain dan range dari fungsi f(x)=(x-2)/(x-1)+3 adalah....a. Df={x | x=/=1, x e R} Rf={y | y>0, y e R}b. Df={x | x=/=1, x e R} Rf^f={y | y >= 0, y e R} c. Df={x | x =/= 1, x e R} Rf^f={y | y =/= 1, y e R} d. Df={x | x =/= 1, x e R} Rf={y | y =/= 0, y e R}e. Df={x | x =/= 1, x e R} Rf^f={y | y =/=-1, y e R}