After connecting a trailer or semi-trailer to a towing or supporting vehicle, must the brake response be checked?

1. AYes. Connecting a trailer or semi-trailer requires checking the brake response at the start of the journey.
2. BNo, there is no need to check the brake response. It is enough that there is proper air pressure in the brakes.
3. CYes. After connecting to a towing or supporting vehicle, one must go to a brake-testing facility and check that the brakes are in proper working order.
4. DNo. The driver does not have the means to check the brake response.

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