What must you remember when loading a trailer?

You selected both answer 1 (must be securely packed) and answer 2 (must not project more than 1 m beyond the rear reflectors, unless specially marked), which are correct.

When loading a trailer in Germany, you must make sure that the load is packed securely so it cannot move or fall off, ensuring safety on the road. Also, the load may not extend more than 1 meter past the rear reflectors unless it is specially marked, otherwise this could create a danger or violate legal limits. The rule about projecting from the front does not apply; you only need to consider the load extending at the rear. Remembering these points helps with safe and legal trailer use.