If you have a breakdown and have to get out of your vehicle, in which of the following cases must you use the reflective vest?
A)Only when occupying the roadway or shoulder on highways or expressways.
B)When occupying the roadway on urban roads.
C)When occupying the shoulder on interurban roads.Correct
# Explanation: Use of the Reflective Vest in a Breakdown
The reflective vest is mandatory when you leave your broken-down vehicle on the **shoulder of interurban roads**. This safety garment significantly increases your visibility to other drivers, especially in low-light conditions, reducing the risk of accidents. On highways and expressways, the obligation is even greater, but on urban roads its use is not necessary due to the lower traffic speed.