It is dark outside, and you have your full beams on. When should you be able to see a person wearing dark clothing with no reflectors?
The options are not shown, since this is one of the 1000 paid questions.
Buy all 1000 questions now
Visibility with “dark clothing [...] full beams 150 metres.” (Driving Licence Book, 20th Edition, page 152).
There is also a driving licence book online (2023).
More examples of explanations: