If we are on a dead-end street and there is no other possibility, how many metres can we drive in reverse?

A)Less than 15 metres.
B)Just up to the first intersection without invading it.
C)Enough to exit the street, even invading an intersection.Correct
As a general rule, driving in reverse is prohibited. However, it is allowed, exceptionally and for the minimum distance indispensable, in the following cases:
As a general rule, driving in reverse is prohibited, except in the following cases, exceptionally and always for the minimum distance indispensable:
1. As a complementary manoeuvre to stopping, parking or joining traffic. In this case, the reverse distance may not exceed 15 metres nor invade an intersection.
2. When it is not possible to move forward or change direction or way. In this case, there is no limit to the reverse distance, even being able to invade an intersection if necessary.
The reverse manoeuvre is prohibited on dual carriageways and motorways.
1. As a complementary manoeuvre to stopping, parking or joining traffic. In this case, the reverse distance may not exceed 15 metres nor invade an intersection.
2. When it is not possible to move forward or change direction or way. In this case, there is no limit to the reverse distance, even being able to invade an intersection if necessary.
The reverse manoeuvre is prohibited on dual carriageways and motorways.