What are the four levels of environmental classification used to identify the level of vehicle pollution based on their emissions?

A)0 emissions, ECO, C and D.
B)No emissions, ECO, A and B.
C)0 emissions, ECO, C and B.Correct
Environmental badges are used to classify vehicles according to their level of pollution. The four levels of environmental classification are:
- 0 emissions: Refers to pure electric vehicles that do not emit polluting gases during operation.
- ECO: This category includes hybrid vehicles, extended-range electric vehicles and those with very low emissions, such as some plug-in hybrid and natural gas vehicles.
- C: Groups vehicles with more moderate emissions, such as some Euro 6 diesel and Euro 4 and 5 gasoline vehicles.
- B: Includes vehicles with the highest emissions among those allowed by European regulations, such as some Euro 4 and 5 diesel vehicles and Euro 1, 2 and 3 gasoline vehicles.