To exit a dead-end street, may you reverse more than 15 metres?

To exit a dead-end street, may you reverse more than 15 metres?
A)No, under no circumstances may I reverse more than 15 metres.
B)Yes.Correct
C)No, reversing is a prohibited manoeuvre.
As a general rule, driving in reverse is prohibited, except in the following cases:
- When it is not possible to move forward or change direction or course. In this case there is no limit on the reverse distance, and you may even cross an intersection if necessary.
- As a complementary manoeuvre to stopping, parking or merging into traffic. In this case the reverse distance may not exceed 15 metres nor cross an intersection.

The reverse manoeuvre is prohibited on motorways and dual carriageways.
In the case of the question, if we cannot make a U-turn, we may reverse the distance necessary to exit the dead-end street.