I'm not sure if im right.

Question 3 Complete Recall that the identity function on a set A is the function id , such that id A (x) = x Points out of for any x in A. 1.00 Flag Definition: A function r : X - A is a retraction if there exists another function question 5 : A - X such that r . s = idA. Suppose that X is the integers and r is defined by r(x) = (x). Which of these is a possible value for A? Select one or more: Ja. R V b. the set of all prime numbers C. N O d. Z