Yes, along with any manoeuvre required: Correct
In Spain and many other countries, reversing can be used as a complementary manoeuvre along with other driving actions. It is common to reverse as part of a broader manoeuvre, such as parking, turning around, or avoiding an obstacle. For example, when performing a three-point turn, reversing is often used to complete the manoeuvre.
Yes, but only to park: This is incorrect because reversing is not limited to parking. It can also be used in other manoeuvres, such as turning, making space, or avoiding obstacles.
No, it is forbidden: This is incorrect. Reversing is not forbidden, but it should always be done safely and within the required legal and safety standards.