Which of the following rational functions has a vertical asymptote at x=1 and x=-4 and a hole at x=5? 1) (f(x) = \frac{3x-15}{(x-1)(x+4)}) 2) (f(x) = \frac{(x-5)(x+1)}{(x-1)(x+4)}) 3) (f(x) = \frac{(x-5)(x-1)}{(x+4)}) 4) (f(x) = \frac{(x-5)}{(x+1)(x+4)})