For the function shown below, find (if the quantity exists) (A) lim f(x), (B) lim f(x), (C) lim f(x), and (D) f(0). X-0 X-0 21 - x2, for x5 0 f(x ) = 21 + x, for x > 0 . . . (A) Select the correct choice below and fill in any answer boxes in your choice. O A. lim f(x) = X-+0* O B. The limit does not exist. (B) Select the correct choice below and fill in any answer boxes in your choice. O A. lim f(x) = X-0 O B. The limit does not exist.(G) Select the correct choice below and fill in any answer boxes in your choice. if} A- lim f(x) = x>0 {I} B. The limit does not exist. (D) Select the correct choice below and fill in any answer boxes in your choice. iii} A. f(0) = {D B. The value does not exist