What will the output of the below code?C++Java#include <iostream>using namespace std; int main(){     int arr[2] = { 1, 2 };    cout << 0 [arr] << ", " << 1 [arr] << endl;    return 0;}1, 2Syntax errorRun time errorNone

The output of the code will be "1, 2".

Here's the step by step explanation:

1. The code starts with including the iostream library, which allows the program to perform input and output operations.

2. The "using namespace std;" line allows the program to use names for objects and variables from the standard library.

3. The main function is declared. This is the function that is automatically called when the program is run.

4. Inside the main function, an array of integers named 'arr' is declared and initialized with two elements: 1 and 2.

5. The 'cout' line is where the program outputs the elements of the array. The unusual thing here is the syntax used to access the array elements. Instead of using the usual syntax 'arr[index]', the code uses 'index[arr]'. This is actually valid in C++ because the array subscript operator [] is commutative, meaning 'arr[0]' is the same as '0[arr]'. So, '0[arr]' returns the first element of the array (which is 1), and '1[arr]' returns the second element of the array (which is 2).

6. The 'endl' part of the 'cout' line inserts a new line.

7. The main function returns 0, which indicates that the program has run successfully.

So, the output of the program will be "1, 2".