What is the correct way to declare and assign a function

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What is the correct way to declare and assign a function pointer?
```
(Assuming the function to be assigned is "int multi(int, int);")
```

1. int *fn_ptr(int, int) = multi;
2. int *fn_ptr(int, int) = &multi;
3. int (*fn_ptr)(int, int) = multi;
4. All of above
5. None of these

Correct Option: C

int (*fn_ptr)(int, int) = multi;