Must high-visibility reflective vests be type-approved?
A)It is not mandatory, but it is recommended.
B)Only if they are orange; yellow ones do not need to be type-approved.
C)Yes.Correct
# Explanation: Type-approval of Reflective Vests
Yes, high-visibility reflective vests must be type-approved according to traffic regulations. This type-approval guarantees that they meet the safety and reflectivity standards necessary to be visible in low-light conditions. It is a legal obligation that must be verified through the CE marking and the corresponding technical standards.