Q.27 let d = {(7.y) e r : |r| + 1ls 1} and f: d r be a non-constant continuous function. which of the following is true? (a) the range of f is unbounded (b) the

Q.27 Let D = {(7.y) E R : |r| + 1lS 1} and f: D R be a non-constant continuous function. Which of the following is TRUE? (A) The range of f is unbounded (B) The range of f is a union of open intervals (C) The range of f is a closed interval (D) The range of f is a union of at least two disjoint closed intervals