下面的方法，当输入为2的时候返回值是多少?public static int getValue(int i) {        int result = 0;        switch (i) {        case 1:            result = result + i;        case 2:            result = result + i * 2;        case 3:            result = result + i * 3;        }        return result;}

• A.2

• B.4

• C.10