Solve

Consider the following client method for the Stack class: /* Precondition: Stack s is defined. * Postcondition: Returns the bottom element of s. *s remains unchanged. of: public String bottom (Stack 5) { /*code*/ 5 Which replacements for /*code*/ will achieve the required postcondition? | String x; while (!s.isEmpty()) X = s.pop() ; return xX; \\\\ String x; Stack t = s; while ('t.isEmpty()) x = t .pop(); return xX