Java的题目，求各位看看怎么做

C
是选择题？

import java.util.Scanner;
public class Demo {
    public static void main(String[] args) {
        System.out.println("1+1=( )");
        System.out.println("A.2  B.3  C.不一定等于2  D.1");
        Scanner in=new Scanner(System.in);
        String option=in.next();
        switch (option){
            case "A":
                System.out.println("回去修炼小学课程");
                break;
            case "B":
                System.out.println("异想天开");
                break;
            case "C":
                System.out.println("不一样的聪明");
                break;
            case "D":
                System.out.println("一成不变");
                break;
        }
    }
}