Let f(x)= x-6x-27 X-9 x-9 Find a) lim f(x), b) lim f(x), and c) lim f(x). x-0 X-3 a) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. lim f(x)= x-9 (Simplify your answer.) OB. The limit does not exist. b) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. lim f(x) = x-0 (Simplify your answer.) B. The limit does not exist. c) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. lim f(x)= X-3 (Simplify your answer.) B. The limit does not exist.