Which of the following vehicles can be a priority vehicle according to the book, provided they carry blue light + two-tone siren together (Book p.116)? Select all that apply.
A fire engine
An ambulance with only the blue light on, without a siren
A police car
A Rijkswaterstaat vehicle
Explanation
False — trap: blue-light-is-enough. Without the two-tone siren as well, this is not a priority vehicle (Book p.116).