Which persons may you refuse to transport?

The selected combination is correct because both categories of persons mentioned can indeed pose a risk to safety and order during transport. According to German traffic regulations, drivers have the right to refuse transportation to individuals who may jeopardize the safety of the vehicle, the driver, or other passengers.

Persons who endanger the safety and order of operation may disrupt the driving environment, which can lead to accidents or unsafe conditions. Additionally, passengers that threaten the safety of others can create a hazardous situation for everyone on board.

Understanding these regulations is crucial for maintaining a safe environment in public transport and personal vehicles. Thus, it's important to recognize all relevant options when selecting your answer.