What will be the output of the following C code?#include

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What will be the output of the following C code?

#include <stdio.h>
    int multiply(int p, int q, int r)
    {
        return p * q * r;
    }
    void main()
    {
        int (fun_ptr)(int, int, int);
        fun_ptr = multiply;
        printf("The multiplication of three numbers is : %d",
        fun_ptr(12, 2, 5));
    }

1. The multiplication of three numbers is : 120
2. Nothing
3. Compilation Error
4. Garbage value
5. None of these

Correct Option: C

Compilation Error

main.c: In function ‘main’:
main.c:9:17: error: lvalue required as left operand of assignment
         fun_ptr = multiply;