Consider the following code segment. int x = 20; while (x 0) canCall = true; IT if ( 30n) canCall = true; if (!isRoaming) canCall true, if (bars > 0) canCall = true; if (ison || !isRoaming && bar3 > 0) canCall = true; (B) ( (D I only II only III only I and II II and III Assume that an array of integer values has been declared as follows and has been initialized. int list () new int [15): Which of the following code correctly swaps the values of list[2] and list[3)? (A) list[2] = list [3] list [3] = list [2]; (B) int n = list [2] : list [2] = list [3] , list [3] = list [2]; int n = 3 list [3] = list [2]; list [2] = list[n]; int n = list[2] list[2] = list [3] list [3] = n; int n = list [2]; list[2] = list [3]; list [3] = list[n]; Consider the following code segment. ArrayList stuff= new ArrayList(); stuff.add("2"). stuff.add(""); stuff.add (2, ""); stuff.remove (1); stuff.add("x"); system.out.println(stuff); Which is printed as a result of executing this code segment? @gee [z, f, W, X] [W, 2, 8, x] [f, w, x] [Z, W, x] [z, f, x)