the first-aid practice in the case of accidental

Which one of the following is the correct first-aid practice in the case of accidental or broken accident?

1- Ensuring that the troubled zone is immobilized

2- Trying to correct the deformed shape in the arm or the bend

3- Transport without suspending the suspected area of the fracture

4- Allowing the resident to sit or move to the left or right

The right answer is:  1- Ensuring that the troubled zone is immobilized