The answer is c. (y-1)/(y-6)(y-2). So I just multiply the complex fraction and flip the second fraction like this (y-1)/(y^2+y-6) * (y+3)/(y-6). Try to factor out y^2+y-6 and you get (y-2)(y+3). Then you combine the fractions like this (y-1)(y-3)/(y-2)(y+3)(y-6) and that's how you get the answer.
