Analyze the following code.

import java.util.$*$;

public class Test $\{$

public static void main$($String$[]$ args$)$ throws Exception $\{$

Set set $=$ new TreeSet$<>()$;

set.add$("$Red$")$;

set.add$("$Green$")$;

set.add$("$Blue$")$;

System.out.println$($set$.$first$())$;

$\}$

$\}$

Select one:

A$.$ The program displays Green

B$.$ The program displays Blue

C$.$ The program displays Red

D$.$ The program cannot compile

E$.$ The program may display Red, Blue, or Green.