5x Find the limits in a), b), and c) below for the function f(x) = Use - co and co when appropriate. X - 4 . . . a) Select the correct choice below and fill in any answer boxes in your choice. A. lim f(x) = -00 X-+4 (Simplify your answer.) O B. The limit does not exist and is neither - co nor co. b) Select the correct choice below and fill in any answer boxes in your choice. O A. lim f(x) = - 0O X-+4 (Simplify your answer.) O B. The limit does not exist and is neither - co nor co