Help me in solving CPPAS35 problem

help
,
1

My issue

In break and switch

My code

#include <bits/stdc++.h>
using namespace std;
int main() {
    int choice;
    switch(choice) {
        case 1:
            cout << "Option 1 selected";
            break;
        case 2:
            cout << "Option 2 selected";
            break;
        case 3:
            cout << "Option 3 selected";
            break;
        default:
            cout << "Invalid choice";
    }

    return 0;
}

Learning course: ATT - C++
Problem Link: Identify the error in ATT - C++