Consider the following function. X-5 f(x) = x-25 (a) Explain why f has a removable discontinuity at x = 5. (Select all that apply.) lim f(x) is finite. X-5 lim f(x) does not exists. X-5 f(5) is undefined. f(5) and lim f(x) are finite, but are not equal. X-5 none of the above (b) Redefine f(5) so that f is continuous at x = 5 (and thus the discontinuity is "removed"). f(5) =